Transfer of Charge

Q. When we touch a negatively charged conducting ball, we can see our hair strands to stand erect. Which of the following is the reason for this?

1. Hair acquires charge form the ball and repel each other.
2. Hair gets ionised with negative charge at its tip.
3. Charges are spread in the air by the conducting ball.
4. Hair gets ionized with negative chargeat its root.

Q.

An electroscope is given a positive charge, causing its foil leaves to separate. When an object is brought near the top plate of the electroscope, the foils separate even further because, ___.

(A)

1. None of the above

2. the object is positively charged

3. the object is negatively charged

4. the object is electrically neutral

Q. When a glass rod is rubbed with a silk cloth, glass loses and acquires a charge.

1. neutrons
2. protons
3. electrons
4. positive
5. negative

Q. Electric current is the flow of _______.

1. heat
2. temperature
3. charges
4. power

Q. A positively charged body is brought in contact to an uncharged gold leaf electroscope, then:

1. No charge is induced in the leaves
2. Positive charge is induced in both the leaves
3. Negative charge is induced in both the leaves
4. Positive charge is induced in one leaf and negative in the other

Q. Transfer of electric charges can take place between two bodies through a conductor.

1. True
2. False

Q. A copper rod, a plastic scale, a woollen cloth, and an inflated balloon are given an equal amount of charge initially. The bodies were then individually discharged with the help of identical neutral bodies. Which of them will be discharged first? (Assume that the neutral body is larger in size than all.)

1. Copper rod
2. Inflated balloon
3. Plastic scale
4. Woolen cloth

Q. Transfer of electric charges can take place between two bodies through a conductor.

1. True
2. False

Q. Arrange the events of binary fission in amoeba .
A) Daughter cell
B) Nuclear division
C) Parent amoeba
D) Cytoplasmic division

1. C$\to$B$\to$D$\to$A
2. D$\to$A$\to$B$\to$C
3. B$\to$C$\to$A$\to$D
4. A$\to$B$\to$C$\to$D