Advertisements
Advertisements
Question
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?
Solution
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
RELATED QUESTIONS
n electrons flow through a cross section of a conductor in time t. If charge on an electron is e, then write an expression for the current in the conductor.
Write symbol and state function of following component in an electric circuit : key
What is the electrical potential at a point in an electric field when 24 J of work is done in moving a charge of 96 C from infinity?
What do you understand by the term parallel circuit?
Draw a diagram showing two bulbs connected in parallel to a dry cell.
State the kind of charge on a positive ion.
A bulb is connected to a cell. How is the resistance of circuit affected if another identical bulb is connected (i) in series, (ii) in parallel, with the first bulb?
'The resistance of a wire is 2 ohm'. Explain the meaning of this statement.
