BASIC ELECTRICITY - Practice Mode

1) Which law states that at constant termperature the current passing through a closed circuit is directly proportional to the potential difference and inversely proportional to the resistance?

Ohm's law Lenz's law Newton's law Hooke's law

Correct Answer: Ohm's law

2) What is the resistance?
I = 11.5 Amps
V = 380 Volts
R = _______Ohms

13 ohms 23 ohms 33 ohms 43 ohms

Correct Answer: 33 ohms

3) What is the current?
R = 50 Ohms
220 Volts
I =______Amps

4.1 Amps 4.2 Amps 4.3 Amps 4.4 Amps

Correct Answer: 4.4 Amps

4) What is the voltage?
R = 250 Ohms
I = 0.44 Amps
V = _____Volts

100 Volts 105 Volts 108 Volts 110 Volts

Correct Answer: 110 Volts

5) Which statement is correct according to ohm's law?

I = 1/V I = R I = V/R I = R/V

Correct Answer: I = V/R

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