C13 Electrical System: Resistance

C13 Electrical System: Resistance

Using Ohm's law, how to calculate the resistance of a component?

Multiple Choice

A current of 2A is flowing in a circuit. More batteries are added to the circuit. Describe whether the current will be

• more than 2A.

• less than 2A.

• remained the same.

Explanation

• V = RI

• V = 2 x 2 = 4V

Explanation

• V = RI

• 25 = 2 x I

• I = 25/2

• I = 12.5 A

Explanation

• V = RI

• 50 = R x 2

• R = 50/2 = 25 $\Omega$