When large current passes through the circuit, the fuse wire melts due to ___________.

Assertion: When a large current passes through the circuit, the fuse wire melts due to Joules heating effect. Reason: Fuse wire has low melting point and high resistance.

An ac ammeter is used to measure currnet in a circuit. When a given direct current passes through the circuit. The ac ammeter reads 3 A. When another alternating current passes through the circuit, the ac ammeter reads 4A. Then find the reading of this ammeter (inA), if dc and ac flow through the circuit simultaneously.

An ac ammeter is used to measure currnet in a circuit. When a given direct current passes through the circuit. The ac ammeter reads 3 A. When another alternating current passes through the circuit, the ac ammeter reads 4A. Then find the reading of this ammeter (inA), if dc and ac flow through the circuit simultaneously.

Assertion : A fuse wire is always connected inparallel with the mainline. Reason: If a current larger than the specified value flows through the circuit, fuse wire melts.