Question

A 10.0-V battery is connected to a 120-Ω resistor. Ignoring the internal resistance of the battery, calculate the power delivered to the resistor.

Answer 1

0.83W

Step-by-step explanation:

Given parameters:

Voltage of the battery = 10V

Resistance = 120Ω

Unknown:

Power delivered by the resistor = ?

Solution:

The power delivered by the resistor can be derived using the expression below;

Power =
`(V^(2) )/(R)`

V is the voltage

R is the resistance

Now, insert the parameters and solve

Power =
`(10^(2) )/(120)` = 0.83W