Question 355: Current Electricity

Question

A heater coil is cut into two equal parts and only one part is now used in the heater. The heat generated will now be

Accepted Answer

$$H = {{{V^2}t} \over R}$$
Resistance of half the coil $$ = {R \over 2}$$
$$	herefore$$ As $$R$$ reduces to half, $$'H'$$ will be doubled.

Answer

four times

Answer

doubled

Answer

halved

Answer

one fourth

Current Electricity