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Understanding Electrical Concepts

Authored by Young Mula

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Understanding Electrical Concepts
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is Ohm's Law?

Ohm's Law is I = V + R.

Ohm's Law defines power as P = I / R.

Ohm's Law states that R = V / I.

Ohm's Law is V = I * R.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for calculating power?

P = E * t

P = m * a

P = F / d

P = W / t

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a series circuit, the total resistance is:

The total resistance is the product of all individual resistances.

The total resistance is the sum of all individual resistances.

The total resistance is the average of all individual resistances.

The total resistance is the maximum resistance among all individual resistances.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a transformer do?

A transformer increases the frequency of electrical signals.

A transformer stores electrical energy for later use.

A transformer changes the voltage of alternating current.

A transformer converts direct current to alternating current.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What unit is used to measure electrical resistance?

ohms

amps

watts

volts

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

If a circuit has a voltage of 12V and a current of 3A, what is the resistance?

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the power consumed by a device that draws 2A at 120V?

240W

120W

60W

480W

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