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Electrical Engineering - Ohm's Law

Exercise : Ohm's Law - General Questions
6.
How much resistance is required to limit the current from a 12 V battery to 3.6 mA?
3.3 k
33 k
2.2 k
22 k
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
What is the voltage source for a circuit carrying 2 A of current through a 36 resistor?
1.8 V
18 V
7.2 V
72 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
What is the approximate resistance setting of a rheostat in which 650 mA of current flows with a 150 V source?
9.7
97
23
230
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
How much voltage is needed to produce 2.5 A of current through a 200 resistor?
50 V
500 V
80 V
8 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
When there is 12 mA of current through a 1.2 k resistor, the voltage across the resistor is
14.4 V
1.4 V
100 V
10 V
Answer: Option
Explanation:

V = IR (Ohms Law)

= 12 X 10-3 X 1.2 X 10 3

= 12 X 1.2

= 14.4 V

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