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If a CD player draws 1.6 A of current from a 13.6-Vdc source, how much is its resistance?

Question

If a CD player draws 1.6 A of current from a 13.6-Vdc source, how much is its resistance?

check_circleAnswer
Step 1

CD player is fed from DC source. so, Ohm’s law can be applied here:

current drawn = I
I 1.6A
voltage of the source=Vg
dc
Ve13.6V
dc
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current drawn = I I 1.6A voltage of the source=Vg dc Ve13.6V dc

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Step 2

According to Ohm’s law for DC circuit the current in the DC circuit is proportional to the voltage and is inversely proportional to the resistance of the circuit.

Ohm's law: I
R
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Ohm's law: I R

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Step 3

 Applying Ohm’s law...

dc
I =
R
V.
R=dc
I
13.6
R =
Ohm
1.6
R 8.5 Ohm
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dc I = R V. R=dc I 13.6 R = Ohm 1.6 R 8.5 Ohm

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