A-Level Physics: For a cell with an emf of 10 V, a current of 2 A, R1 = 3 Ω, and R2 = 0.5 Ω, how do you find the terminal p.d?

Question

For a cell with an emf of 10 V, a current of 2 A, R1 = 3 Ω, and R2 = 0.5 Ω, how do you find the terminal p.d?

daavide · Accepted Answer

Calculate V1 = I × R1 = 2 × 3 = 6 V and V2 = I × R2 = 2 × 0.5 = 1 V. Thus, the total terminal p.d is 7 V.

For a cell with an emf of 10 V, a current of 2 A, R1 = 3 Ω, and R2 = 0.5 Ω, how do you find the terminal p.d?