Related InterviewSolutions

• Give two differences between the electric resistance and electric specific resistance of a material.
• State two multiples and two submultiples of the unit of electric potential and electric current.
• which of element use to make bulb?
• Do not connect the two __________of a cell with a single wire.
• Connect a circuit on a wooden plank or on a thermocol sheet as shown in Figure. Insert two drawing pins at A and B. Insert a safety pin in between A and B. such that one end of the pin is completely in contact with B and the other end is left free. Now observe the bulb.What do you notice?What happens?Why doesn’t the bulb glow when the safety pin is left free at one end?
• Connect circuits as shown in the following figure. Write your observation in each case.
• What is current?
• What is filament?
• Do not connect the two terminals of a cell with a single wire. Give reason.
• To prevent electric shock, electric wires cover with A) Plastic B) Cotton C) Iron D) Cloth