1.

Current of 2.5+0.5A with potential difference 20+1V.calculate resistance

Answer»

Answer:

7 OHMS

Explanation:

Given:

Current = I = 2.5+0.5 = 3 Amperes

POTENTIAL DIFFERENCE = v = 20+1 = 21 Volts

To find:

  • Resistance in the CIRCUIT if the current is 3 Amperes and potential difference is 21 volts

Using the ohms law:

V=I×R

21=3×R

R=21/3

R=7Ω

The resistance prevalent in the circuit is EQUAL to 7 ohms

More:

  • resistance of series combination = R1+R2
  • Resistance of parallel combination = 1/equivalent resistance = 1/R1+1/R2
  • Coulombs law = q=i×t



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