Two resistors of 4Ω and 6Ω are connected in series. Their combined resistance is:
10Ω
When resistors are connected in series, the same current flows through each of them, and the equivalent resistance is simply the sum of the individual resistances: \(R_{eq} = R_1 + R_2\).
Substituting the given values, \(R_{eq} = 4\,\Omega + 6\,\Omega = 10\,\Omega\).
So the combined resistance of the two resistors connected in series is 10 ohms, which is always greater than either individual resistance in a series combination.
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Important Questions from Current Electricity
- In a parallel combination of resistors, which of the following quantities remains the same across all the resistors?
- Which of the following statements is/are true for a domestic circuit?
(i) All the appliances are connected in parallel.
(ii) The live wire in the domestic circuit has green insulation on it.
(iii) A fuse connected to the circuit allows excessive current to pass through the appliances.
(iv) The neutral wire in the domestic circuits has black insulation on it. A science teacher asks students to measure the current through a bulb using an ammeter. What precaution must the students follow?
- Which characteristic of parallel circuits makes them advantageous over series circuits for connecting multiple electrical gadgets in a house?
- In a domestic electric circuit, the main purpose of a FUSE is ________.
