Advertisements
Advertisements
प्रश्न
Draw a simple labeled diagram of a step-down transformer.
Advertisements
उत्तर
Step down trasformer
APPEARS IN
संबंधित प्रश्न
Prove theoretically (electromagnetic induction) `e = (dphi)/(dt)`
Explain why, an electromagnet is called a temporary magnet.
Explain why, the core of an electromagnet should be of soft iron and not of steel.
Name one device which works on the phenomenon of electromagnetic induction.
In which of the following case does the electromagnetic induction occur?
A loop of wire is held near a magnet.
A coil has a self-inductance of 0·05 Henry. Find the magnitude of the emf induced in it when the current flowing through it is changing at the rate of 100 As-1.
Draw a labelled diagram to make an electromagnet from a soft iron bar. Mark the polarity at its ends in your diagram. What precaution would you observe while making it?
Find the odd one out and give its explanation.
Write the two names in the following diagram.
Right hand thumb rule.
There is a uniform magnetic field directed perpendicular and into the plane of the paper. An irregular shaped conducting loop is slowly changing into a circular loop in the plane of the paper. Then ______.
