How many resistances are used in a Wheatstone bridge? - Vidyadip

Question

How many resistances are used in a Wheatstone bridge?

✓

Answer

4

Explanation:
Wheatstone bridge is an arrangement of four resistors P, Q, R, and S, such that if we know the value of the resistances of any three of them, we can obtain the value of fourth unknown resistance. Therefore, there are 4 resistances in a Wheatstone bridge.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q (1 Marks)" from Current Electricity→Current Electricity — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Four light waves are represented by

$\text{y}=\text{a}_1\sin\omega\text{t}$
$\text{y}=\text{a}_2\sin(\omega\text{t}+\epsilon)$
$\text{y}=\text{a}_1\sin2\omega\text{t}$
$\text{y}=\text{a}_2\sin2(\omega\text{t}+\epsilon)$

Interference fringes may be observed due to superposition of:

(i) and (ii)
(i) and (iii)
(ii) and (iv)
(iii) and (iv)

The speed at which the current travels, in conductor, is nearly equal to:

In transformer, core is made of soft iron to reduce(a) Hysteresis losses(b) Eddy current losses(c) Force opposing electric current(d) None of the above

By a surface of a liquid we mean.

A heavy nucleus at rest breaks into two fragments which fly off with velocities in the ratio 8 : 1. The ratio of radii of the fragments is (a) 1 : 2(b) 1 : 4(c) 4 : 1(d) 2 : 1

In Bohr's model of hydrogen atom, let PE represents potential energy and TE the total energy. In going to a higher level(a) PE decreases, TE increases(b) PE increases, TE increases(c) PE decreases, TE decreases(d) PE increases, TE decreases

During negative b - decay(a) Neutron converts into proton(b) Proton converts into neutron(c) Neutron proton ratio increases(d) None of these

Focal length of a convex lens of refractive index 1.5 is 2 cm. Focal length of lens when immersed in a liquid of refractive index of 1.25 will be(a) 10 cm (b) 2.5 cm(c) 5 cm (d) 7.5 cm

If a proton and anti-proton come close to each other and annihilate, how much energy will be released

Certain radio-active substance reduces to 25% of its value in 16 days. Its half-life is(a) 32 days(b) 8 days(c) 64 days(d) 28 days