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संबंधित प्रश्न
Find the equivalent resistance between points A and B
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?
Calculate the equivalent resistance of the following combination of resistor r1, r2, r3, and r4
Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1 A. The current through the 40 W bulb will be ______.
What material is used for making wire to prepare heating coils? Give a reason.
2Ω resistor A, 1Ω resistor B and 4Ω resistor C are connected in parallel. The combination is connected across a 2V battery of negligible resistance. Draw the diagram of the arrangement and calculate:
(i) The current in each resistor A and C,
(ii) The current through battery.
Two wires of same material and same lengths have radii in the ratio of 2 : 3, Compare their resistances.
If R1 and R2 be the resistance of the filament of 40 W and 60 W respectively operating 220 V, then:
