A resistor has power dissipation with a cell of voltage

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

A resistor

R

has power dissipation

P

with a cell of voltage

E

. The resistor is cut into

n

equal parts and all parts are connected in parallel with the same cell. The new power dissipation is (a)

nP

(b)

nP^2

(c)

n^2P

(d)

n/P