English

Draw a Simple Labeled Diagram of a Step-up Transformer. - Physics

Advertisements
Advertisements

Question

Draw a simple labeled diagram of a step-up transformer.

Diagram
Advertisements

Solution

Step up transformer

 

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Current Electricity - Exercise 5 [Page 213]

APPEARS IN

Frank Physics - Part 2 [English] Class 10 ICSE
Chapter 4 Current Electricity
Exercise 5 | Q 14.5 | Page 213

RELATED QUESTIONS

The magnetic flux through a loop varies according to the relation Φ = 8t2 + 6t + C, where ‘C’ is constant, 'Φ' is in milliweber and 't' is in second. What is the magnitude of induced e.m.f. in the loop at t = 2 seconds.


A line charge λ per unit length is lodged uniformly onto the rim of a wheel of mass M and radius R. The wheel has light non-conducting spokes and is free to rotate without friction about its axis (Figure). A uniform magnetic field extends over a circular region within the rim. It is given by,

B = − B0 k (r ≤ a; a < R)

= 0 (otherwise)

What is the angular velocity of the wheel after the field is suddenly switched off?


What condition is necessary for the production of current by electromagnetic induction?


An induced current is produced when a magnet is moved into a coil. The magnitude of induced current does not depend on:  

(a) the speed with which the magnet is moved
(b) the number of turns of the coil
(c) the resistivity of the wire of the coil
(d) the strength of the magnet


A conducting square loop of side l and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A uniform and constant magnetic field Bexists along the perpendicular to the plane of the loop as shown in figure. The current induced in the loop is _____________ .


A conducting rod is moved with a constant velocity v in a magnetic field. A potential difference appears across the two ends _____________ .


Answer the following:

State the principles of the electric motor and electric generator. 


Why soft iron is preferred to be used as the core of the electromagnet of an electric bell?


Obtain an expression for motional emf from Lorentz force.


Sea turtles return to their birth beach many decades after they were born due to ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×