- #1

FelaKuti

- 19

- 0

## Homework Statement

A 2200 µF capacitor is charged to a potential difference of 12 V and then discharged through an electric motor. The motor lifts a 50 g mass through a height of 24 cm.

The capacitor is charged to 12 V again and then discharged through a 16 Ω resistor

Determine the time constant and the maximum current flowing through the circuit.

## Homework Equations

[/B]

C = Q/v

RC = t

V = IR

## The Attempt at a Solution

The time constant would be RC = 35ms

I feel like this should be really simple but I can't figure out the maximum current. I know when a capacitor charges or discharges the current is initially at a maximum then falls. If the maximum voltage across the resistor is 12V, then I figure the maximum current flowing would be 0.75A but that's wrong.