Question

Which of the following statements are true?

a)	The potential energy of the charge carriers is increased when they move through the battery and decreased when they move through the load.
b)	In an electrical circuit, the energy from the power source is transferred to the load by net transport of charge carriers.
c)	In a single loop circuit, the energy of a charge carrier is decreased non-negligibly upon traversing the circuit once.
d)	The energy of the charge carriers is not changed when they travel through the wire.

Answer 1

a) True.

The potential energy increases fron -ve to +ve terminal inside the battery.the +ve charges moves from -ve to +ve terminal.therefore the potential energy of the charges increases inside the battery.potential drop is -ve along the current flow(+ve charges) inside a load.so,the potential energy decreases.

b) True.

Charge carriers transfer energy in a closed circute.

c) False.

From the law of conservation of energy,the total energy in the circute constant.

d) False.

From the disscussion in part a the statement is false.