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प्रश्न
Three resistors are connected to a 6 V battery as shown in the figure given below:
Calculate:
(i) the equivalent resistance of the circuit.
(ii) total current in the circuit.
(iii) potential difference across the 7.2 Ω resistor.
उत्तर
(i) `1/"R"_1 = 1/8 + 1/12`
`= (3 + 2)/24 = 5/24`
R1 = 4.8 ohm.
Total Resistance = 4.8 + 7.2 = 12 ohm
(ii) V = IR
6 = I × 12
I = 0.5 Amp.
(iii) V = IR
= 0.5 × 7.2
= 3.6 Volt.
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संबंधित प्रश्न
The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below:
| I (amperes) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 |
| V (volts) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 |
Plot a graph between V and I and calculate the resistance of that resistor.
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a charge of 1 C passes through it?
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Assertion (A): Charges flow from higher potential to lower potential.
Reason (R): Current flows mainly due to the flow of electrons.
