Electric Current

Q. The flow of electrons is called _________.

1. water current
2. chemical current
3. air current
4. electric current

Q.

Flow of which particle produces a current in the wire?

1. Neutron

2. Proton

3. Positron

4. Electron

Q.

In an electric circuit, the conventional current flows from positive to the negative terminal of the battery.

1. False

2. True

Q.

Electricity is the physical phenomena associated with___

1. vibration of molecules which has an electric charge.

2. vibration of electrons around their stable position.

3. the presence of particles which has an electric charge.

4. the presence and motion of particles which has an electric charge.

Q. In an electric circuit, current flows:

1. From negative terminal to positive terminal
2. From positive terminal to negative terminal
3. Randomly
4. None of the above

Q. In an electrolytic cell current flows from?

1. Anode to cathode outside the cell
2. Cathode to anode in outer circuit
3. Cathode to anode inside the cell
4. Anode to cathode inside the cell

Q.

Which one of the following is/are true about electricity?

1. It is the flow of electric charge.

2. The electric charge is just another property like matter.

3. It is measurable.

4. It is due to only positive charge.

Q. I need to study about electric current

Q. The flow of electrons in an electric circuit produces electric _____________.

1. current
2. junction
3. pump
4. cell

Q. SI unit of current is ______.

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

Q. The direction of flow of electrons is opposite to the direction of flow of current.

1. False
2. True

Q. Statement 1: In a closed circuit, current flows from the negative terminal to the positive terminal of the battery.
Statement 2: In an open circuit, current does not flow.
Which of the following options is correct based on the above given statements?

1. Statement 1 is true, statement 2 is false
2. Statement 1 is false, statement 2 is true
3. Both statements are true
   
4. Both statements are false
   

Q.

The quantity of electricity required to reduce $12.3\mathrm{g}$ of nitro benzene to aniline assuming $50\%$ current efficiency is

1. $115800\mathrm{C}$

2. $28950\mathrm{C}$

3. $231600\mathrm{C}$

4. $57900\mathrm{C}$

Q. Volume of gases evolved when dil. ${\text{H}}_{\text{2}}\text{S}{\text{O}}_{\text{4}}$ is electrolysed using 2F at STP is;

1. 33.6 L
2. 22.4 L
3. 11.2 L
4. 44.8 L

Q. the resistance of a conductor is reduced to 1/2 its initial value . in doing so the heating effects in the conductor will become:
1. 1/2 2. 1/4 3. 4 times 4. double

Q. A fully charged battery contains $500ML$ of $5.0$ $M{H}_{2}S{O}_4$ What is the concentration of $H_{2}S{O}_4$ in the battery after $6.0A$ of current drawn from the battery for $13.40h?$

Q.

The quantity of electricity required to reduce 12.3 g of nitro benzene to aniline assuming 50% current efficiency is:

1. 115800 C
2. 57900 C
3. 231600 C
4. 28950 C

Q. In the arrangements A and B shown below, pins P and Q stick to an iron loop and an iron rod with the help of wax. In which case are the both pins likely to fall at different times? Explain.

Q. In , heat transfer occurs predominantly through conduction.

1. solids
2. liquids
3. gases

Q.

What is Electric Current? What is its direction of flow in an Electric circuit?

Q. Find the mass of silver deposited when a current of 1.5 ampere is passed through silver nitrate solution for 5 min.

Q.

With which of the following can we compare to the flow of electrons?

1. The volume of water flowing through a water pipe or water falling down in a waterfall.

2. Volume of water freezing to form ice.

3. A quantity of water spreading on a plane.

4. The process of melting of ice to form water.

Q. An electric current is said to be flowing through a wire when ___ pass thorough it.

1. neutrons pass through it
2. electric charges pass through it
3. matter
4. atoms

Q.

If you know that the current is in a particular direction, then can you say all the 'balls' are going only in that direction at any point of time?

1. Yes

2. Not every time, but definitely sometimes.

3. They move such that they are always going in a direction different from the direction of current.

4. They move opposite to the direction of current.

Q. Calculate the current strength which was passed for 15 min to liberated $193.11c{m}^3$ of hydrogen gas at $273K$ and $760mm$ of $Hg$ pressure during electrolysis of acidulated water.

Q. In the arrangements A and B shown below, pins P and Q stick to an iron loop and an iron rod with the help of wax. In which case are the both pins likely to fall at different times? Explain.

Q. Electric current flows in open circuits only.

1. True
2. False

Q. A constant electric current flows for $4$ hours through two electrolytic cells connected in series. One contain $AgN{O}_3$ solution and second contains $CuC{l}_2$ solution. During this time, $4$ grams of Ag are deposited in the first cell.
What is the current flowing in amperes?

Q. The deflection in a magnetic compass placed below a current-carrying wire when the switch is turned off.

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.

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