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an alarm clock draws 0.75 A of current when connected to a 15 volt circuit. Calculate it's resistance

GIVEN:
UNKNOWN:
FORMULA:
SOLUTION:​


Sagot :

Answer:

20 ohms

Explanation:

Given:

V(voltage) = 15 V

I(current) = 0.75 A

R(resistance) = ?

Formula: R = V / I

Solution:

 R = V / I

    = (substitute the formula)

    = 15V / 0.75A

     = 20 ohms

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