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Class X >> Science >> Magnetic Effects of Electric Current >> A1

Q1	Connecting many appliance in a single circuit may cause _________.
A	Short Circuit
B	Fuse
C	Over Loading
D	Explosion

Q2	The current that does not change its direction after equal interval of time is called __________.
A	A.C
B	D.C
C	Both
D	None of the Above

Q3	An electric current flowing in circuit can produce an attracting field around it known as __________.
A	Heating Effect
B	Chemical Effect
C	Magnetic Effect
D	Thermal Effect

Q4	Which device is used to show magnetic field direction at a point?
A	Compass
B	Ammeter
C	Voltmeter
D	Hydrometer

Q5	An electric generator converts:
A	Electrical Energy to Mechanical Energy
B	Heat Energy to Mechanical Energy
C	Electrical Energy to Chemical Energy
D	Mechanical Energy to Electrical Energy

Q6	The axis of earth's magnetic field is inclined with the geographical axis at an angel of about __________.
A	5°
B	15°
C	25°
D	35°

Q7	The shape of the earth's magnetic filed resembles that of an imaginary:
A	U-shaped Magnet
B	Straight Conductor Carrying Current
C	Current Carrying Circular Coil
D	Bar Magnet

Q8	Which of the following is not attracted by a magnet?
A	Steel
B	Cobalt
C	Brass
D	Nickel

Q9	Which of the following attracts pieces of iron, steel, nickel and cobalt?
A	Magnet
B	Battery
C	Current
D	Resistors

Q10	A magnet attracts __________.
A	Plastics
B	Brass
C	Aluminum
D	Iron & Steel

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