Download App

Magnetic Effect of Current — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsMagnetic Effect of Current1 Mark
Question
The current sensitivity of a moving coil galvanometer can be increased by(a) Increasing the magnetic field of the permanent magnet(b) Increasing the area of the deflecting coil(c) Increasing the number of turns in the coil(d) a, b, c
 
 
 
 
✓

Answer

(d) a, b, c

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 Magnetic Effect of Current→Magnetic Effect of Current — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

In an ac circuit, the potential differences across an inductance and resistance joined in series are, respectively, 16V and 20V. The total potential difference across the circuit is.
→
The energy of a photon of characteristic X-rays from  a Coolidge tube comes from (a) The kinetic energy of the striking electron(b) The kinetic energy of the free electrons of the target(c) The kinetic energy of the ions of the target(d) An electronic transition of the target atom
 
 
 
 
→
What is ozone hole(a) Hole in the ozone layer(b) Formation of ozone layer(c) Thinning of ozone layer in troposphere(d) Reduction in ozone thickness in stratosphere
 
 
 
 
→
A charged particle of mass $m$ and charge $q$ travels on a circular path of radius $r$ that is perpendicular to a magnetic field $B .$ The time taken by the particle to complete one revolution is
→
$n$ electron is moving on a circular path of radius $r$ with speed $v$ in a transverse magnetic field $B . e / m$ for it will be
→
Number of spectral lines in hydrogen atom is:
→
The resistivity of iron is $1 \times 10^{-7}$ ohm $- m$. The resistance of a iron wire of particular length and thickness is $1$ ohm . If the length and the diameter of wire both are doubled, then the resistivity in ohm $- m$ will be
→
Two charges each of $1$ coulomb are at a distance $1 \ km$ apart, the force between them is
→
Total internal reflection can take place only if :
→
The expression for thermo $e.m.f.$ in a thermocouple is given by the relation $E=40 \theta -\frac{\theta^2}{20},$ where $\theta$ is the temperature difference of two junctions. For this, the neutral temperature will be
→