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प्रश्न
State expression for Cells connected in parallel.
उत्तर
I = `"nE"/"nR + r"` cells in parallel.
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संबंधित प्रश्न
Find the expression for resistors connected in series.
An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:
(a) 0.92 A
(b) 2.9 A
(c) 9.2 A
(d) 92 A
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
When do you say that the resistors are connected in this way? Draw a circuit diagram.
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State and explain the laws of resistance.
A metal wire of resistance 6 Ω is stretched so that its length is increased to twice its original length. Calculate its new resistance.
Calculate the quantity of heat that will be produced in a coil of resistance 75 Ω if a current of 2A is passed through it for 2 minutes.
Two wires of same material and same lengths have radii in the ratio of 2 : 3, Compare their resistances.
