Q.51)-A fuse wire can be indentify due to the properties
  • High resistivity and minimum melting point
  • High resistivity and high melting point
  • Minimum resistivity and minimum melting point
  • Minimum resistivity and minimum melting point
Q.52)-Intensity of magnetic field is
  • Meter/volt
  • Meter/ampere
  • Ampere/meter
  • Volt/ampere
Q.53)-An electrochemical cell which is used as a source of direct current at constant voltage under standard condition is called as
  • UPS (uninterrupted power supply)
  • Battery
  • Power transmitter
  • Generator
Q.54)-The device which is used to store the electric charge is called
  • Inductor
  • Capacitor
  • Generator
  • Transistor
Q.55)-What is the name of the device which is used to record the electrical activity during heart beat?
  • Electrocardiogram
  • Electrocardiograph
  • Stethoscope
  • Sphygnomanometer
Q.56)-Which of the following element is used in a circuit to block the DC?
  • Diode
  • Resistor
  • Inductance
  • Capacitance
Q.57)-If the length of a resistance wire increases, then its resistance
  • Increases
  • Decreases
  • Remains unchanged
  • All of these
Q.58)-If a spoon is to be electroplated with nickel the spoon is
  • Dipped in Nickel sulphate solution
  • Made anode and pure nickel rod, the cathode
  • Made cathode and pure nickel rod, the anode.
  • Dry the spoon after plating Nickel sulphate
Q.59)-If a coil is rotated in a magnetic field, then current is induced in the coil. This phenomenon is used in
  • For making Electro magnet
  • For making electric motor
  • For making electric generator
  • For making electric watt meter
Q.60)-When a bar magnet is cut into two equal halves the pole strength of each piece
  • Become double
  • Becomes half
  • Becomes zero
  • Remains the same