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NO. 118

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NO. 119

Study the problem below, then continue.

100 mV = 20 ______ A

5k Ω

Solution:

Substitute equivalent powers of 10 for m and k; fill in the blank with the proper

power of 10; then substitute a metric prefix for equivalent power of 10.

Thus:

100 mV = 100 X 10-3 V = 20 X 10-6 A= 20 A

5k Ω

5 X 103 Ω

NOTE:

This is a practical electrical problem working with Ohm's law:

volts (V) = amperes (A)

ohms (Ω)

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NO. 120

Fill in the blank with the proper metric prefix.

24 kV = 12 _______ Ω

2 mA