Advertisements
Advertisements
Question
State the relation between work, charge and potential difference for an electric circuit.
Advertisements
Solution
The relation between work (W), charge (Q) and potential difference (V):
The work required to be done (W) to move a positive charge Q, between two points in a circuit having potential difference V, is QV. That is,
W = QV
APPEARS IN
RELATED QUESTIONS
You can given one hundred 1 Ω resistors. What is the smallest and largest resistance you can make in a circuit using these?
Using the circuit given below, state which of the following statement is correct?
(a) When S1 and S2 are closed, lamps A and B are lit.22
(b) With S1 open and S2 closed, A is lit and B is not lit.
(c) With S2 open and S1 closed A and B are lit.
(d) With S1 closed and S2 open, lamp A remains lit even if lamp B gets fused.
Draw a circuit diagram showing two lamps, one cell and a switch connected in series.
How can you change the brightness of the lamp?
Complete the following sentence:
Fuse wire has a ............ Melting point and it is made of an alloy of ......... and if the current in a circuit rises too high, the fuse wire ...........
Define the following:
Electromotive force
Name the principle on which a transformer works.
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
What determines the direction of flow of electrons between two charged conductors kept in contact?
