# Current through a Wire

## Trending Questions

**Q.**When an electric current is passed, electrons move:

- from High potential to Low potential
- in the direction of the current
- from Low potential to High potential
- perpendicular to the direction of current

**Q.**

Define electric current. Give its SI unit and formula.

**Q.**The amount of electric charge flowing through a cross-section area of a conductor in unit time is termed as:

- Electric current
- Electric resistance
- Electric potential
- Potential difference

**Q.**If a charge of 600 C flows through the cross-section of a conducting wire in 5 minutes, what is the value of the current that flows through the wire?

- 1.42 A
- 1.5 A
- 2.5 A
- 2 A

**Q.**

In a conductor, electrons are flowing from $B$ to $A$. What is the direction of conventional current? Give justification for your answer. A steady current of $1ampere$ flows through a conductor. Calculate the number of electrons that flows through any section of the conductor in 1 second.

**Q.**300 C charge passes through the cross section A of the conductor in 5 minutes as shown.

Calculate the current flowing in the conductor.

- 1 A
- 2 A
- 0.5 A
- 5 A

**Q.**In a part of a circuit shown in figure, the potential difference between points

*A*and

*B*(

*V*–

_{A}*V*) will be

_{B}चित्र में दर्शाए गए परिपथ के किसी भाग में, बिन्दुओं

*A*व

*B*के मध्य विभवान्तर (

*V*–

_{A}*V*) होगा

_{B}- 24 V
- 27 V
- 36 V
- 48 V

**Q.**

SI unit of electric current is ________.

**Q.**

What is the difference between a potentiometer and a voltmeter?

**Q.**

Give one word for the following.

The rate of electric charge through a conductor.

**Q.**

A non-conducting ring of radius $R$ has charge $Q$ distributed unevenly over it. If it rotates with an angular velocity $\omega $, the equivalent current will be

**Q.**

$1$ volt equals

$1$ joule

$1$ joule per coulomb

$1$ coulomb per metre

$1$ newton per coulomb

**Q.**

Use the following information to answer the next question.

The given figure shows a circuit with a resistor R connected to a cell of voltage V.

Which statement is correct regarding the flow of charges through resistor R?

Only electrons travel from P to Q, while no flow of protons takes place

Electrons travel from Q to P, while protons travel from P to Q

Only electrons travel from Q to P, while no flow of protons takes place

Electrons travel from P to Q, while protons travel from Q to P

**Q.**

If two points are maintained at 5V each and a resistor of 10 ohms is connected across them, what is the current flowing between those two points?

0.5 A

50 A

Zero

Infinity

**Q.**

If two points are maintained at 5V each and a resistor of 10 ohms is connected across them, what is the current flowing between those two points?

Zero

0.5 A

50 A

Infinite

**Q.**

In what time (in seconds) should a charge of 10 C flow between the two terminals so as to maintain a constant current of 100 A?

110 s

10 s

110 s

1110 s

**Q.**

The SI unit of current is_______.

ampere

coulomb

pascal

watt

**Q.**If a charge of 1800 C flows through the cross-section of a conducting wire in 10 minutes, what is the value of the current that flows through the wire?

**Q.**

If electric field intensity in a region is zero, then electric potential at all the points in the region is ____.

**Q.**

Define one ampere.

**Q.**If a charge of 600 C flows through the cross-section of a conducting wire in 5 minutes, what is the value of the current that flows through the wire?

- 1.42 A
- 1.5 A
- 2.5 A
- 2 A

**Q.**

Electric current is expressed by the number of neutrons flowing through a particular area per unit time.

True

False

**Q.**Which of the following is a bad conductor of electricity?

- ORS drink
- Distilled water
- Tap water
- Salt water

**Q.**Choose the correct option:

Statement 1: The following figure correctly represents the conventional direction of flow of current.

Statement 2: The actual direction of flow of electrons is opposite to the conventional direction of flow of current.

- Statement 1 is incorrect and statement 2 is correct.
- Both statements are incorrect.
- Both statements are correct.
- Statement 1 is correct and statement 2 is incorrect.

**Q.**

When a potential difference is applied across the resistor, the movement of electrons will be:

parabolic

circular

straight line

zig - zag

**Q.**

One coulomb of charge flows through any cross section of a conductor in one second. Select the correct option as per the given statement.

Resistance of the conductor is 2 Ω.

2 A of current flows through that conductor.

1 A of current flows through that conductor.

Resistance of the conductor is 1 Ω.

**Q.**

According to the conventions direction of flow of electric current is taken from positive terminal to negative terminal of battery, which is opposite to the flow of

**Q.**Current travels with same speed in all the conductors irrespective of the material of conductor.

- False
- True