Advertisements
Advertisements
प्रश्न
Advertisements
उत्तर
We know that, P =VI
I = `"P"/"V" = 40/220` = 0.11 A
APPEARS IN
संबंधित प्रश्न
Write down the formula which relates electric charge, time and electric current
The circuit diagram given below shows the combination of three resistors R1, R2 and R3:
Find :
(i) total resistance of the circuit.
(ii) total current flowing in the circuit.
(iii) the potential difference across R1.
A battery and three lamps are connected as shown:
Which of the following statements about the currents at X, Y and Z is correct?
(a) The current at Z is greater than that at Y.
(b) The current at Y is greater than that at Z.
(c) The current at X equals the current at Y.
(d) The current at X equals the current at Z.
Tick(✓) the correct choice in the following:
When the length of a conductor is doubled the resistance of the conductor
will
Find the effective resistance in the following circuit diagrams (Fig.):

Complete the following table. The first answer has been given as an example
| Quantity | Unit |
|
(a) Electrical potential Volt ( b) Resistance ( c) Power ( d) Energy ( e) Resistivity |
Volt ........ .......... ............ .............. |
An electrical gadget can give an electric shock to its user under certain circumstances. Mention any two of these circumstances.
The power of an electric device is a product of ______ and ______.
What is the rate at which charges flow past a point on a circuit?
Define the following:
Conventional current
