Advertisements
Advertisements
प्रश्न
A bulb draws current 1.5 A at 6.0 V. Find the resistance of filament of bulb while glowing.
Advertisements
उत्तर
I = 1.5 A
V = 6.0 V
According to Ohm's law ,
V = IR
∴ `"R" = "V"/"I" = 6.0/1.5 = 4.0 Ω`
APPEARS IN
संबंधित प्रश्न
Name one D.C. source and one A.C. source.
What transformation of energy takes place when current is drawn from a cell?
Write symbol and state function of following component in an electric circuit :
ammeter
When starter motor of a car is switched on for 0.8 s . a charge 24 C passes through the coil of the motor . Calculate the current in the coil .
Explain why does a metal wire when connected to a cell offer resistance to the flow of current.
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?
