Download App

Current Electricity — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
Question

The graph which represents the relation between the total resistance R of a multi range moving coil voltmeter and its full scale deflection V is

(a) (i)

(b) (ii)

(c) (iii)

(d) (iv)
✓

Answer

(d) (iv)

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→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

An electromagnetic wave radiates outwards from a dipole antenna, with E0​ as the amplitude of its electric field vector. The electric field B0​ which transports significant energy from the source falls off as:
→

In the given figure each plate of capacitance C has partial value of charge

(a) CE

(b)  

(c)   

(d)

→
A point source of light is placed in front of a plane mirror:
  1. All the reflected rays meet at a point when produced backward.
  2. Only the reflected rays close to the normal meet at a point when produced backward.
  3. Only the reflected rays making a small angle with the mirror, meet at a point when produced backward.
  4. Light of different colours make different images.
→
For a solid with a small expansion coefficient:
  1. Cp - Cv = R
  2. Cp = Cv
  3. Cp is slightly greater than Cv
  4. Cp is slightly less than Cv
→
A circular coil expands radially in a region of magnetic field and no electromotive force is produced in the coil. This can be because
→

X-rays of wavelength 0.1 Å allowed to fall on a metal get scattered. The wavelength of scattered radiation is 0.111 Å. If h = 6.624 × 10–34 J-s and m0 = 9 × 10–31 kg, then the direction of the scattered photons will be

(a) cos–1 (0.547)

 (b) cos–1 (0.4484)

 (c) cos–1 (0.5)

 (d) cos–1 (0.3)
→

A point charge of 40 stat coulomb is placed 2 cm in front of an earthed metallic plane plate of large size. Then the force of attraction on the point charge is

(a) 100 dynes

(b) 160 dynes

(c) 1600 dynes

(d) 400 dynes
→

The effective resistance between the points  A and  B in the figure is

(a) 5Ω

(b) 2 Ω

(c) 3 Ω

(d) 4 Ω
→
Two circular loops of equal radii are placed coaxially at some separation. The first is cut and a battery is inserted in between to drive a current in it. The current c~anges slightly because of the variation in resistance with temperature. During this period, the two loops:
→
Which of the following change the activity of radioisotope?
→