Question

A circuit is made of 0.4 ohm wire, 150 ohm bulb and a 120ohm rheo stat connected inseries. Determine the total resistance of the resistance of the circuit?

Answer 1

Answer:
Total resistance = 270.4 ohm

Explanation:
In series connection, the total resistance can be calculated by adding all the resistances.

We have:
wire resistance = 0.4 ohm
bulb resistance = 150 ohm
rheostat resistance = 120 ohm

Adding up all the resistances, we can get the total resistance of the circuit as follows:
Total resistance = 0.4 + 150 + 120 = 270.4 ohm

Hope this helps :)