Electric Current

Q. There are three types of electric charges - positive, negative and neutral.

1. False
2. True

Q.

Electric current always flows from ______ to _______.

Q. What constitutes electricity?

1. Flow of mass
2. Flow of heat
3. Flow of protons
4. Flow of charges

Q. There are three types of electric charges - positive, negative and neutral.

1. False
2. True

Q. What is the current flowing through a conductor when a charge of $60C$ flows for $1minute$?

1. $1A$
2. $60A$
3. $10A$
4. $6A$

Q.

Define the term resistivity of a conductor. Give its SI unit.

Q. If the current through a conductor is $10A$, what is the charge flowing through it for $5s$?

1. $0.5C$
2. $50C$
3. $2C$
4. $50C$

Q.

What is the definition of electric field?

Q. What is one ampere?

Q.

What is conductivity of a resistor?

Q. Let the charge flowing through a conductor for $15s$ be $2C$. Find the current flowing through the conductor.

1. $1.133A$
2. $0.133A$
3. $2.133A$
4. $0.11133A$

Q. Current through a conductor is $2A$. Find the time for which a charge of $100C$ flows.

1. $0.83minutes$
2. $50minutes$
3. $1.83minutes$
4. $10minutes$

Q. What is one ampere?

Q. Let the charge flowing through a conductor for $5s$ be $10C$. Find the current flowing through the conductor.

1. $0.5A$
2. $0.1A$
3. $5A$
4. $2A$

Q. SI unit of current is ______.

1. ampere
2. volt
3. joule
4. watt

Q.

Find the electric current that flows through a conductor if a charge of $0.8C$ flows through it in $4seconds$.

1. $0.5A$

2. $0.2A$

3. $0.25A$

4. $0.01A$

Q.

Electric current is the ________ of flow of electric _______.

1. Rate , charge

2. Current , voltage

3. Current, charge

4. Rate , voltage

Q. What helps with excessive heating in high tension wires?

1. Low resistance
2. Large surface area
3. Either low resistance or large surface area
4. Neither low resistance nor large surface area