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1,2 are in series so equivalent is 3,4,5 are in series so equivalent is 9,now 3 and 9 are in parallel so equivalent is 9/4 now 9/4 and 3 are in series so equivalent is 21/4

current through 3 is 'i'current through 2 will be 9i/12ie 4i/3A then the ratio of 3 to 2 current = 3/4

t

I am not totally sure the right answer a 3×10^4

option a is the correct answer of the given question

In the case of radiocarbon dating, the half-life of carbon 14 is5,730 years.

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it can be seen that potential difference around 4+4 Ω and 1+3Ω resistance will always be same as V.

so, potential in the mid of 4Ω at A will be V/2 ( both resistance are equal )

and since potential drop in the mid of 1 and 3 at B will be lesser because 1Ω is < than 3Ω , so, potential will be greater than V/2

and we know that current flows from higher to lower potential .

so, here current will flow from B to A

Flow from B to A as potential at B will be higher than potential at A

dq/dt = [(AK)/2x][T2-T1] = 20/4 = 5. Therefore( AK/x)(T2-T1) = 10

When they are one above the other,

dq/dt = 2Ak/x][T2-T1] =20/t

Therefore t = 2×10 = 20/t

Therefore t = 1 min

When aconductor carryingacurrentis placed in amagnetic field, theconductorexperiences amagnetic force. The direction of thisforceis always right angles to the plane containing both theconductorand themagnetic field, and is predicted by Fleming's Left-Hand Rule.

A streamline flow or laminar flow is defined as one in which there are no turbulent velocity fluctuations. In consequence, the only agitation of the fluid particles occurs at a molecular level.

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1. switch2 electric3 4 circuit5

1. circuit breaker. 2.electric

3. power houses4.circuit5.proportional

1 switch2 electric3 power station4 circuit I will tell you 4 answer so please like my comment so I earn some rewards Pls brother like this post I request you

Resistance

Resistanceofaconductoristheobstructionofferedbytheconductorintheflowofcurrentthroughit.Itismeasuredbythepotentialdifferenceneededacrosstheconductortoflowoneamperecurrentthroughit.

Theresistanceofaconductordependsuponitsmaterial,temperature,lengthandareaofcrosssection.

S.I.unitofresistanceisohm.

Resistivity

Resistivityisthepropertyoftheconductorduetowhichitoffersresistancetotheflowofcurrentthroughit.Itismeasuredbytheresistanceofferedby1mlengthofwireofthatmaterialofareaofcrosssection1m2.

Resistivityofthematerialdependsonlyonitsmaterialandtemperature.

S.I.unitofresistivityisohm-metre.

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Given -

m = 1kg

A = 10 mm2 = 10^-5 m2

g = 9.8 m/s2

F = ?

T = ?

Solution -

For suspended weight,

F = mg

F = 1×9.8

F = 9.8 N

Stress produced is given by,

T = F/A

T = 9.8/(10⁻⁵

T = 9.8 × 10⁵ Pa

T = 980 kPa

Stress produced is 980 kPa in vertically upward direction.

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use of synthetic fibres...

#to make shiny clothes and expensive clothing substances...

#to make ropes .. strong and steady..which don't break..

and disadvantages

Your body changes oxygen into a different gas called carbon dioxide. ... Youbreathein oxygen, and you breatheout carbon dioxide. Trees and plantsdon'tbreatheoxygen as wedo. They take in carbon dioxide and they put out oxygen — just the opposite of people and animals.

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When he moves downmg-nmg=maa=g(1-n)

mass of man=70 Kgg=10f=mg=700N1 step = 20cm10 steps= 200cm=2mh=2mw= mghw= 700*2=1400Jt=5secp=w/tp=1400/5=280Watt

The fuse has low resistance and therefore low resistivity. This cause the fuse wire to melt if a current more than the safe current for the appliance starts flowing through the circuit. The fuse breaks the circuit if a fault in an appliance causes too much current flow. This protects the wiring and the appliance if something goes wrong. The fuse contains a piece of wire that melts easily. If the current going through the fuse is too great, the wire heats up until it melts and breaks the circuit.

An electrical fuse works by breaking the circuit when there is a fault in an appliance that causes too much current to flow. The wire within the circuit melts due to the heat generated when the current going through the circuit is too great. The most common fuses that are used in electrical appliances are 3A, 5A and 13A.

We already know that electric dipole is an arrangement which consists of two equal and opposite charges +q and -q separated by a small distance 2a.Electric dipole moment is represented by a vector p of magnitude 2qa and this vector points in direction from -q to +q. To find electric potential due to a dipole consider charge -q is placed at point P and charge +q is placed at point Q.

Since electric potential obeys superposition principle so potential due to electric dipole as a whole would be sum of potential due to both the charges +q and -q. Thus

V = 1/4piEo ( q/r1 - q/r2)

where r1 and r2 respectively are distance of charge +q and -q from point R.

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An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between the motor's magnetic field and winding currents to generate force in the form of rotation.

Electric motor is used in Fan, cooler

Electric field can exist only if there is a difference in potential. Potential, however high, if it is equal at all points, there will be no electric field. This is what happens inside a charged hollow sphere. Inside the sphere, there is potential, but no potential difference, hence no field.

Thus, in generalElectric field is defined as negative space derivative of potential.

Considering one dimensional case for simplicity,

E = - dV/dx

Or E= - (gradient of potential)

(-) sign indicates that field is directed from higher potential to lower potential.

The answer is Option 3.

Let electric field be in the downward Y direction and charge be a positive point charge. X direction is perpendicular to Y direction. In short X is horizontal . This is exactly similar to the situation of projectile motion in which gravitational acceleration is in negative Y direction.Suppose we project charge particle at an angle (theta) with horizontal then it makes an angle of 90 degree+theta with electric field .Now, downward acceleration of charge particle is Eq/m. m is mass of the particle. We neglect the gravitational force on the charge particle. So in the equations of projectile motion we replace g by Eq/m. For example , height achieved isH=u(y)^2/(2Eq/m),where u(y) is y component of velocity of projection,u. Similarly other eqs. can be written. No need to say that trajectory is parabola.

C) because Potential difference doesn't depend upon displacement.it is scalar.

(C) is the correct answer. Because potential difference doesn't depend on displacement and it is scalar.

1)the forces experienced by the 2 charges constituting the electric dipole when placed in an uniform external electric field are equal and opposite in nature, the net force on the dipole is zero.

2) angle of rotation = 180thantorque = pE sin180 = 0

No torque act on the dipole when the moment of electric dipoleis parallel to the electric field.

Electric field is a force produced by a charge near its surroundings. This force is exerted on other charges when brought in the vicinity of this field

force=qE,impulse=qEt=momentum=p, k.e.=p2/2mOr

1) qE + mg = maa = qE/m + g

2) v = 0 + at

v = (qE/m + g)t

3) K.E =1/2mv^2

= 1/2m [(qE/m + g)t]^2 Joule

none of these

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the correct answer is 5:36

5:36 is the right answer for this question