A clock radio is rated as 30 W of power output. If the radio also draws 30 W at 120 V, which will the current draw be?

A. 0.25 A

B. 4 A

C. 3,600 A

D. 0.5 A

Question

Mathematics

Marlie Shelton

12 September, 00:01

A clock radio is rated as 30 W of power output. If the radio also draws 30 W at 120 V, which will the current draw be?

A. 0.25 A

B. 4 A

C. 3,600 A

D. 0.5 A

+3

Answers (1)

Know the Answer?

Maurice Erickson · Answer 1

Given:

power = 30 W

voltage = 120 V

Power = current * voltage

current = power / voltage

Current = 30 w / 120 v

Current = 1/4 or 0.25 A

The answer is Choice A. 0.25 A.

A clock radio is rated as 30 W of power output. If the radio also draws 30 W at 120 V, which will the current draw be?A. 0.25 AB. 4 AC. 3,600 AD. 0.5 A

A clock radio is rated as 30 W of power output. If the radio also draws 30 W at 120 V, which will the current draw be?

A. 0.25 A

B. 4 A

C. 3,600 A

D. 0.5 A