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The current through a heater is 12 A when it is plugged into a
120 V source. What is the resistance of the heater?
A. .10Ω
B. 10Ω
C. 132Ω
D. 1440Ω


Sagot :

804895

Answer:

A. 10Ω

Explanation:

the resistance of a heater with a current of 12 A and plugged to a voltage of 120 V is  B. 10 Ω

Resistance: This can be defined as the opposition to the flow of current in an electric circuit.

In other to solve the problem above, make use of ohm's law

Ohm's can be represented mathematically as

V = IR................... Equation 1

Where V = Voltage, I = Current, R = Resistance

From the question,

make R the subject of the equation

R = V/I.............. Equation 2

Given: V = 120 V, I = 12 A

Substitute these values into equation 2

R = 120/12

R = 10 Ω

Hence the resistance of the heater is B. 10 Ω

Learn more about resistance here: https://brainly.com/question/23608969