81. The rating of a fuse wire is always expressed in________________?

A. ampere-hours
B. ampere-volts
C. kWh
D. amperes

82. The minimum charge on an ion is______________?

A. equal to the atomic number of the atom
B. equal to the charge of an electron
C. equal to the charge of the number of electrons in an atom (#) zero

83. In a series circuit with unequal resistances______________?

A. the highest resistance has the most of the current through it
B. the lowest resistance has the highest voltage drop
C. the lowest resistance has the highest current
D. the highest resistance has the highest voltage drop

84. The filament of an electric bulb is made of______________?

A. carbon
B. aluminium
C. tungsten
D. nickel

85. A 3 Q resistor having 2 A current will dissipate the power of_______________?

A. 2 watts
B. 4 watts
C. 6 watts
D. 12 watts

86. Which of the following statement is true________________?

A. A galvanometer with low resistance in parallel is a voltmeter
B. A galvanometer with high resistance in parallel is a voltmeter
C. A galvanometer with low resistance in series is an ammeter
D. A galvanometer with high resistance in series is an ammeter

87. The resistance of a few meters of wire conductor in closed electrical circuit is____________?

A. practically zero
B. low
C. high
D. very high

88. If a parallel circuit is opened in the main line, the current_______________?

A. increases in the branch of the lowest resistance
B. increases in each branch
C. is zero in all branches
D. is zero in the highest resistive branch

89. If a wire conductor of 0.2 ohm resistance is doubled in length, its resistance becomes______________?

A. 0.4 ohm
B. 0.6 ohm
C. 0.8 ohm
D. 1.0 ohm

90. Three 60 W bulbs are in parallel across the 60 V power line. If one bulb burns open_________________?

A. there will be heavy current in the main line
B. rest of the two bulbs will not light
C. all three bulbs will light
D. the other two bulbs will light