Is it necessary to keep the length of a metre bridge wire one metre?

A resistance wire connected in the left gap of a metre bridge balances a 10Ω resistance in the right gap at a point which divides the bridge wire in the ratio 3:2. If the length of the resistance wire is 1.5m, then find the length of 1Ω of the resistance wire.

Why is it necessary to use a salt bridge in a galvanic cell?

A wire is under tension of 32N and the length between the two bridges is 1 metre.A 10 metre length of the sample has a mass of 2g.Deduce the speed of transverse waves on the wire and the frequency of the fundamental.

Why should the balance point be obtained in the middle of the wire of a metre bridge?

Can you associate vectors with (a) the length of a wire bent into a loop, (b) a plane area, (c) a sphere? Explain.

How many nanometer constitute 4 metre?

A sonometer wire is under tension of 40 N and the length between the two bridges is 60 cm.A one metre long wire of the sonometer has a mass of 1.0 g.Deduce the speed of transverse waves and the frequency of the second harmonic.