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A 0.22-?F capacitor is charged by a 1.5-V battery. After
Chapter 20, Problem 66P(choose chapter or problem)
Problem 66P
A 0.22-μF capacitor is charged by a 1.5-V battery. After being charged, the capacitor is connected to a small electric motor. Assuming 100% efficiency, (a) to what height can the motor lift a 5.0-g mass? (b) What initial voltage must the capacitor have if it is to lift a 5.0-g mass through a height of 1.0 cm?
Questions & Answers
QUESTION:
Problem 66P
A 0.22-μF capacitor is charged by a 1.5-V battery. After being charged, the capacitor is connected to a small electric motor. Assuming 100% efficiency, (a) to what height can the motor lift a 5.0-g mass? (b) What initial voltage must the capacitor have if it is to lift a 5.0-g mass through a height of 1.0 cm?
ANSWER:
Step 1 of 3
a)
Here, we have to find the height upto which the motor can lift the 5 kg mass.
The capacitance of the capacitor is,
.
The potential difference by the battery is,
.
The electric motor is having 100% efficiency.