A transformer has 300 turns of wire in the primary coil and 30 turns in the secondary coil. lf the input voltage is 100 volts, the output voltage is
10 volts
5 volts
15 volts
20 volts
Which of the following pairs of light rays shows the widest separation in the spectrum of white light?
Green and yellow
Blue and red
Indigo and violet
Orange and red
If two parallel conductors carry current flowing in the same direction, the conductors will
Repel each other
Attract each other
Both move in the same direction
Have no effect on each other
When the speed a car is halved, its kinetic energy is
doubled
quartered
halved
quadrupled
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