Conventional current

Q.

A current of $0.5A$is drawn by a filament of an electric bulb for $10$ minutes. Find the amount of electric charge that flows through the circuit.

Q. What is meant by uniform and non-uniform electric fields? Will an electric field made up of equidistant and curved electric field lines be known as uniform electric field?

Q.

What is the Maxwells modification of amperes law?

Q.

Why do electrons flow in an opposite direction than the direction of current?

Q.

What is positive test charge?

Q.

What is the advantages of AC current over DC current ?

Q. What is electric potential? Define electric potential difference with example.

Q. Question 35
Find out the following in the electric circuit given in the figure.

(a) Effective resistance of two 8 $\Omega$ resistors in the combination
(b) Current flowing through 4 $\Omega$ resistors
(c) Potential difference across 4 $\Omega$ resistances
(d) Power dissipated in 4 $\Omega$ resistors
(e) Difference in ammeter readings, if any

Q. Electric field lines always point away from a positive charge and towards a negative point. In fact, electric fields originate at a positive charge and terminate at a negative charge. Why and how this happens so?

Q.

The net charge on an current-carrying conductor is

1. positive

2. negative

3. varying

4. zero

Q. What is meant by magnitude of a charge

Q.

Two pure inductors each of self-inductance L are connected in series. Find the total inductance.

Q.

List three characteristic features of the electric current used in our homes.

Q. What causes the potential difference between the two terminals of a cell?

Q. In which direction does current flow in an electric circuit ? Also, write the SI unit of electric current .

Q. Why a conductor remains uncharged when current flows through it?

Q. The force acting between two point charges kept at a certain distance is phi. Now magnitudes of charge s are doubled and distance between them is halved, the force acting between them is__

Q. A charge of $300$C is drawn by a filament of an electric bulb for $5$ minutes. Find the amount of electric current flowing through the circuit.

Q.

difference between voltage and current??

Q. Why does current flow from positive to negative terminal of the circuit when electrons move from negative to positive of the circuit?

Q.

Basic source of magnetism

1. Charged particles alone

2. Movement of charged particles

3. Magnetic dipoles

4. Magnetic domains

Q.

difference between electricity and current?

Q.

How direction of flow of current determined by the potential difference.

Q.

From where can we find the conventional direction of an electric current?

Q. Four point charges q1=2c, q2=-5c, qc=2c, qd=-5c are locared at the corners of a square ABCD of side 10 cm. What is the force on a charge of 1c placed at the centre of the square?

Q. Define electric current. A current of $1A$ is drawn by a filament of an electric bulb for $30$ second. Find the amount of electric charge that flows through the circuit.

Q. A current of $0.25A$ is flowing through a filament of an electric bulb for $20min$. Find the amount of electric charge that flows through the circuit.

Q.

Calculate the equivalent resistance of the given circuit and also find the ammeter reading.

1. $5\Omega ,1.2A$
2. $5\Omega ,1.2A$
3. $15\Omega ,1.8A$
4. $45\Omega ,7.5A$

Q.

Point charge (+q) is kept in the vicinity of an uncharged conducting plate, sketch electric field lines between the charge and the plate.

Q.

Was franklin correct when he proposed that electricity was caused by an electric fluid(5 marks)