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4.2.5 Electrical energy and electrical power

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Question 33

There is a current I I\,I in a resistor of resistance R R\,R for a time ttt. The potential difference (p.d.) across the resistor is VVV.

Which equation gives the total energy E E\,E dissipated in the resistor?

A

E=I2RtE = I^2 R tE=I2Rt

B

E=I2RE = I^2 RE=I2R

C

E=IVE = I VE=IV

D

E=VRtE = V R tE=VRt

Markscheme

4.2.5 Electrical energy and electrical power Questions

  1. IGCSE
  2. /Physics
  3. /4.2.5 Electrical energy and electrical power

69 exam-style questions on CIE IGCSE Physics 4.2.5 Electrical energy and electrical power. Each one has a worked solution and a mark scheme showing where the marks go.

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