Advertisements
Advertisements
प्रश्न
A flexible metallic loop abcd in the shape of a square is kept in a magnetic field with its plane perpendicular to the field. The magnetic field is directed into the paper normally. Find the direction of the induced current when the square loop is crushed into an irregular shape as shown in the figure.
उत्तर
When the square loop is crushed into an irregular shape, the area enclosed by the loop decreases, reducing the magnetic flux through the loop. According to Lenz's Law, the induced current flows in a direction to oppose this decrease in flux. To maintain the flux directed into the paper, the induced current flows clockwise in the loop.
APPEARS IN
संबंधित प्रश्न
State the principle on which the AC generator works. Draw a labelled diagram and explain its working.
Describe briefly, with the help of a labelled diagram, the basic elements of an A.C. generator.
State A.C. generator underlying principle?
The instantaneous values of alternating current and voltage in a circuit are
i = `1/sqrt2` sin 100π A and
v = `1/sqrt2 sin (100 pi"t" + pi/3)"V"`.
The average power in watts consumed in the circuit is
Define average value of an alternating current.
Elaborate the standard construction details of AC generator.
In an A.C. circuit, the peak value of voltage is 320 volt. Its effective voltage is ______
A resistor, capacitor, and inductor are connected in series across an AC generator. Which of the following statements is false?
In an A.C circuit, the current
A common transistor radio set requires 12 V (D.C.) for its operation. The D.C. source is constructed by using a transformer and a rectifier circuit, which are operated at 220 V (A.C.) on standard domestic A.C. supply. The number of turns of secondary coil are 24, then the number of turns of primary are ______.