Download App

Alternating Current — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsAlternating Current1 Mark
Question
What is the function of step up transformer?
✓

Answer

To change high current of low voltage into low current of high voltage.

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 "1 Marks Question" from Alternating Current→Alternating Current — all question types→Physics STD 12 Science question papers→Rajasthan Board STD 12 Science question papers→Rajasthan Board question paper generator→

Similar questions

Write Coulomb's law.
→
A wheel with 10 metallic spokes each $0.5 m$ long is rotated with a speed of $120 rev / min$ in a plane normal to the horizontal component of earth's magnetic field $H_E$ at a place. If $H_E=0.4 G$ at the place, what is the induced emf between the axle and the rim of the wheel? Note that $1 G =10^{-4} T$.
→
If energy of a photon is $E=h \nu$ and momentum is $p=\frac{h}{\lambda}$, then what will be velocity of photon?
→
What are coherent sources of light?
→
If the speed of a particle moving. at a relativistic speed is doubled, its linear momentum will:
  1. Become double.
  2. Become more than double.
  3. Remain equal.
  4. Become leas than double.
→
A convex lens is placed in contact with a plane mirror. A point object at a distance of 20 cm on the axis of this combination has its image coinciding with itself. What is the focal length of the lens?
→
The velocity of a particle is towards west at an instant. Its acceleration is not towards west, not towards east, not towards north and not towards south. Give an example of this type of motion.
→
Define electric flux.
→
+Q charge is given on the positive plate of a capacitor and-Q charge is given on the negative plate. What will be the total charge on the capacitor?
→
A capacitor has been charged by a dc source. What are the magnitudes of conduction and displacement currents, when it is fully charged?
→