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