Question

A voltmeter measures a voltage drop of 60V across a heating element while an ammeter reads the current through it as 2A. What is the resistance of the heating coil?

Answer 1

Voltage (V) =I×R
where I is the current and R is the resistance
from the given data
60 =2×R
therefore R =60÷2 =30
Therefore resistance of the heating coil =30ohms