Q1.The unit to measure electric resistance is:
Q2.The device used to make or break an electric circuit is:
Q3.When an electric current passes through a solenoid, it acts as a/an
Q4.Which of the following is an essential element in an electric circuit?
Q5. Which of the following acts as safety device in electric appliances?
Q6.Which of the following does not use magnetic effect of electric current?
Q7.The magnetic effect of the current was discovered by ________?
Q8. The strength of the magnetic field due to a solenoid can be increased by
A.decreasing the current strength in the solenoid
B.increasing the number of turns in the solenoid
C.by winding solenoid around a plastic rod
D.all of the above
Q9.Which of the following is the best option while considering the safety of household electric appliances?
A.We should use wire strip as fuses.
B.We should use non-ISI marked MCBs
C.We should use ISI marked MCBs
D.We should use conductors with high melting point in fuses.
Q10. Compact fluorescent lamps (CFLs) are considered better than ordinary electric bulbs because?
A.CFLs reduce wastage
B.CFLs can be fixed in the ordinary bulb holders.
C.both (a) and (b)
D.none of the above