Advertisements
Advertisements
प्रश्न
In series combination of resistances ______.
विकल्प
p.d. is same across each resistance
total resistance is reduced
current is same in each resistance
all of the above are true
Advertisements
उत्तर
In series of combinations of resistances current is same in each resistance.
Explanation:
In a series combination, the current has a single path for its flow. Hence, the same current passes through each resistor.
APPEARS IN
संबंधित प्रश्न
The diagram below shows part of a circuit:
If this arrangement of three resistors was to be replaced by a single resistor, its resistance should be:
(a) 9 Ω
(b) 4 Ω
(c) 6 Ω
(d) 18 Ω
A graph is plotted taking p.d. along y-axis and electric current along x-axis. Name the physical quantity that represents the slope of this graph (Fig.).

What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?
What is the equivalent resistance between A and B in the given circuit (Fig?)

Bends in a rubber pipe reduce the flow of water through it. How would the bands in a wire affect its electric resistance?
What is a resistance? Define it with respect to Ohm’s law,
Four resistances of 2.0Ω each are joined end to end, to form a square ABCD. Calculate the equivalent resistance of the combination between any two adjacent comers.
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.
