If a 3 A current is flowing per minute through a cross – section of a conductor, how charge flows through it?
180.0 C
Electric current is the rate of flow of charge, \(I = \frac{Q}{t}\), so the charge that passes through a cross-section is \(Q = I \times t\), with I in amperes and t in seconds.
Here the current I = 3 A flows for t = 1 minute = 60 s. So \(Q = 3 \times 60 = 180\) C, that is, 180.0 C of charge flows through the conductor.
Check: \(I = \frac{Q}{t} = \frac{180}{60} = 3\) A, which matches the given current.
Hence, 180.0 C.
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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 ________.
