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
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
Name the material which is the best conductor of electricity.
How does the resistivity of an alloy such as constantace depends on temperature.
State a relation between electrical power, resistance and potential difference in an electrical circuit.
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.
With the help of a circuit diagram derive the formula for the resultant resistance of three resistances connected:
- in series and
- in parallel
Two wires of the same length and area made of two materials of resistivity ρ1 and ρ2 are connected in series to a source of potential V. The equivalent resistivity for the same area is:
When a 4 Ω resistor is connected across the terminals of a 2 V battery, the number of coulombs passing through the resistor per second is:
Consider the following combinations of resistors:
The combinations having equivalent resistance 1 Q is/are ______.
