Advertisements
Advertisements
प्रश्न
Tick(✓) the correct choice in the following:
24 watt, 12 volt head lamp is fully lit by connecting it to a 12 volt
battery. The working resistance of the lamp is
पर्याय
5Ω
4Ω
1 Ω
6Ω
2Ω
Advertisements
उत्तर
6Ω
APPEARS IN
संबंधित प्रश्न
Two resistors of 2.0 Ω and 3.0 Ω are connected (a) in series (b) in parallel, with a battery of 6.0 V and negligible internal resistance. For each case draw a circuit diagram and calculate the current through the battery.
Find the effective resistance in the following circuit diagrams (Fig.):
The circuit diagram (Fig.) shows a battery of e.m.f. 6 volts and internal
resistance of 0.8 Ω oonnected in series. Find the
(a) Current reoorded by the ammeter,
(b) P.d. across the terminals of the resistor B,
( c) Current passing through each of the resistors B, C and D, and
( d) P.d. across the terminals of the battery.
What would be the danger involved in replacing a blown fuse with the one which would carry a large current?
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. The resistance of each heater
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The energy dissipated in the bulb in 10 minutes.
What determines the direction of flow of electrons between two charged conductors kept in contact?
