Advertisements
Advertisements
प्रश्न
A potential difference of 6 V is applied across a 3 Ω resistor. What is the current flowinq throuqh the circuit?
उत्तर
Let I be the current flowing through it.
Given, potential difference, V 6 volt and Resistance, R = 3 Ω
AIC to Ohm's law,
I= `"V"/"R" = 6/3` = 2 A
APPEARS IN
संबंधित प्रश्न
Which of the following terms does not represent electrical power in a circuit?
1 calorie = _________ joule.
At a given time, a house is supplied with 100 A at 220 V. How many 75 W, 220 V light bulb could be switched on in the house at the same time (if they are all connected in parallel)?
Name two gases which are filled in filament type electric light bulbs.
Define 1 kilowatt hour.
An electric bulb of resistance 500 Ω draws current 0.4 A from the source. Calculate:
- the power of bulb and
- the potential difference at its end.
A device is used to transform 12 V a.c. to 200 V a.c. What is the name of this device? Name the principle on which it works.
What is the resistance of an appliance rated at V volt, P watt?
An electric appliance is rated at 1000 W, 250V. Calculate:
(i) The electrical energy consumed by the appliance in 12 hour.
(ii) The cost of energy consumed at Rs. 1.20 per kWh.
How long would this appliance take to use 1 kWh energy when operated at 250 V?
