Magnetic effect of current Worksheet-3
A. it will not work if current is less than 8 A
B. it has a resistance of 8 ohm
C. it will work only if current is 8 A
D. it will burn if current exceeds 8 A.
A. live is red, neutral is black and earth is green
B. live is red, neutral is green and earth is black
C. live is brown, neutral is blue and earth is black
D. live is brown, neutral is light blue and earth is green.
A. soft iron B. steel
C. brass D. laminated steel strips.
A. will become zero B. will decrease
C. will increase D. will remain unaffected
A. iron B. steel C. copper D. aluminium
A. along the axis and parallel to each other
B. perpendicular to the axis and equidistant from each other
C. circular and they do not intersect each other
D. circular at the ends but they are parallel to the axis inside the solenoid.
A. parabolic B. curved C. straight D. circular
A. 150 V B. 210 V C. 200V D. 220V
A. galvanometer B. ammeter
C. generator D. voltmeter.
A. mechanical energy into electrical energy
B. mechanical energy into heat energy
C. electrical energy into heat energy
D. electrical energy into mechanical energy.
A. electrical energy into mechanical energy
B. mechanical energy into heat energy
C. electrical energy into chemical energy
D. mechanical energy into electrical energy.
A. less power is consumed in the ring system
B. it can work even at low voltage supply
C. it is less expensive
D. all appliances can be joined in series.
A. it is generated only at high voltage
B. it is cheaper to produce electricity at high voltage
C. electricity at high voltage is less dangerous
D. there is less loss of energy in transmission at high voltage.
A. the Tate of transmission is faster at high voltage
B. it is more economical due to the less power wasted
C. power cannot be generated at low voltages
D. a precaution against theft of transmission lines.
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