Learn current electricity MCQs, grade 10 online physics test 9, direct and alternating current multiple choice questions and answers. Direct and alternating current revision test has physics worksheets, helping answer key with choices as no electricity, current, frequency and voltage of multiple choice questions (MCQ) with direct and alternating current quiz as the ground wire carries for competitive exam prep, viva interview questions. Free physics study guide to practice direct and alternating current quiz to attempt multiple choice questions based test.

MCQ. The ground wire carries

1. current
2. no electricity
3. frequency
4. voltage

B

MCQ. The resistance of wire depends upon

1. volume
2. length
3. cross sectional area
4. B and C both

D

MCQ. The amount of heat generated in a resistance due to flow of charges is equal to the product of square of current, resistance and the time duration. This statement is known as

1. Ohm's law
2. Joule's law
3. Newton's law
4. Pascal's law

B

MCQ. A large amount of current passes through earth wire because it has

1. very low resistance
2. very high resistance
3. high frequency
4. low frequency

A

MCQ. In the absence of any external source no current passes through the conductor due to the electron's

1. random motion
2. circular motion
3. vibratory motion
4. linear motion

A