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Q.1
25W, 200V and 100W, 200V bulbs are connected in series to a source of 400V. Which bulbs will fuse
*
25W
100W
Both will fuse at the same time
None of the bulbs will fuse
Q.3
What are the basic components of electrical circuit
*
Resistors
Connecting wires
Battery or cell
All of the above
Q.13
Voltage is a form of
*
Kinetic energy
Potential energy
Both kinetic and potential energy
None of these
Q.4
Insulator materials is used for
*
Protecting from shock
Opposition of current
Flowing current
None of these
Q.15
Which of the following is not a unit of electric power
*
Watt
Volt ampere
Jolue-sec
Both B and C
Q.6
Which of the following laboratory apparatus is used for varification of Ohms law
*
Voltmeter
Ammtere
Rheostate
All of the above
Q.7
An ideal ammeter should have
*
Infinite resistance
Zero resistance
Resistance equal to the circuit
Double resistance
Q.8
Battery is a source of
*
Electrical Energy
Electric charge
Electric current
Voltage
Q.14
SI unit of electric current is
*
Volt
Ampere
Ohm
Ohm metet
Q.10
What is the most commonly used conductor in electrical circuit
*
Aluminium
Copper
Silver
Gold
Q.5
kw-h is the unit of
*
Electrical power
Electric potential
Electric current
Electrical energy
Q.12
The ratio of voltage and electric current for a closed circult is always
*
Decreases
Increases
Remains constant
Varies
Q.2
In series combination resistance increases due to
*
Cross sectional area
Temperature
Length
All of the above
Q.11
Resistance of a conductor is directly proportional to
*
Cross sectional area of conductor
Length
Density
Both A and B
Q.9
Electric current originates from which part of atom
*
Nucleus
Entire atom acts as a unit
Positive charged protons
Negative charged electrons
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