Advertisements
Advertisements
प्रश्न
There is a positively charged sphere A and negatively charged sphere B, such that they are brought in electrical contact by a copper wire.
Which sphere is at lower potential before electrical contact on the basis of convention?
Advertisements
उत्तर
Sphere A is positively charged and sphere B is negatively charged.
Both spheres A and B are brought in electrical contact by a copper wire.
On the basis of convention, negatively charged sphere B is lower potential before electrical contact.
APPEARS IN
संबंधित प्रश्न
State three differences between the primary and secondary cells.
What do you understand by the term resistance?
How is the current flowing in a conductor changed if the resistance of conductor is doubled keeping the potential difference across it the same?
4 × 1020 electrons flow through a circuit in 10 hours. Calculate magnitude of current. [1 e- = 1.6 × 10-19 C]
Assuming that the charges of an electron is 1.6 × 10-19 coulombs, the number of electrons passing through a section of wire per sec, when the wire carries a current of one ampere is:
The following Figure represents a negatively charged gold Ieaf electroscope. Label the parts, P, Q, and R and the estate whether each is an insulator or a conductor. Also, indicate the distribution of charges on the system in the diagram.
State the factors on which the electrical resistance of a wire depends.
