Advertisements
Advertisements
प्रश्न
How does a magnetic field set up by a solenoid change when strength of current in the solenoid is decreased?
उत्तर
By decreasing the current flowing in the solenoid, the intensity of magnetic field decreases.
APPEARS IN
संबंधित प्रश्न
State two ways of magnetising an iron piece?
Name and state the rule by which polarity at the ends of a current carrying solenoid is determined.
Name two factors on which the strength of magnetic field of an electromagnet depends and state how does it depend on the factors stated by you.
What is an electric motor?
State the purpose of the iron core.
State the position of armature coil relative to the direction of magnetic field, in a D. C. motor when the deflecting couple acting and the coil is minimum.
The primary windings of a step-up transformer are usually made of thicker wire than the secondary. Explain.
State and explain Maxwell’s Cork Screw Rule.
State the function of a split ring in D.C. motor.
How does a magnetic field set up by a solenoid change when cross-sectional area of solenoid is increased?