Question

A 5.0-ohm resistor, a 15.0-ohm resistor, and a lamp with an unknown resistance are connected in
series with a 15-volt source. An ammeter is placed near the battery and reads a current of 0.50 ampere.
A voltmeter is placed across the 5.0-ohm resistor to measure the potential difference.
A) Using circuit symbols from the reference table draw the above-described circuit.

B) Calculate the potential difference read by the voltmeter across the 5.0-ohm resistor.

Answer 1

Answer:

Ammeter A in the circuit reads 0.50 ampere. A 5.0-ohm resistor, a 10.0-ohm resistor, and a 15.0-ohm resistor are connected in parallel with a battery. The current through the 5.0-ohm resistor is 2.4 amperes.