Question

Rearrange the equation current = voltage/resistance to express resistance in terms of current and voltage. Then solve the following: A certain device in a 130-V circuit has a current rating of 10 A . What is the resistance of the device (how many ohms)?

Answer 1

Answer:

Resistance, R = 13 ohms

Explanation:

The Ohm's law gives the direct relationship between the voltage, current and the resistance of the device. The relation is as follows :

$V=IR$

Where

I is the current

r is the resistance

The value of resistance is given by :

$R=\dfrac{V}{I}$

According to given data,

Voltage of the circuit, V = 130 V

Current rating of the circuit, I = 10 A

Resistance of the device,

$R=\dfrac{130\ V}{10\ A}$

R = 13 ohms

So, the resistance of the device is 13 ohms. Hence, this is the required solution.