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WorksheetsElectricity( Static & Current)
Total questions: 10
Worksheet time: 4mins
If an electroscope, charged up with excess negative charge, is touched and grounded, then it will end up with ___ charge.
No
A Negative
A Positive
None of the above
A negatively charged balloon is brought near a metal can that rests on a wood table. The side of the can opposite the balloon is momentarily touched. The can is then _______.
positively charged negatively charged uncharged
Positively Charged
Negatively Charged
Uncharged
None of the above
The charge of one electron is -1.6 X 10 -19 Coulomb. If a neutral object loses 1.5x106 electrons, then what will be its charge?
+1.4 x 10 -13 C
+2.4 x 10 -13 C
-2.4 x 10 -12 C
+2.4 x 10 -14 C
Object A has a x-y coordinate position of (+5.0, 0.0). Object B has a x-y coordinate location of (0.0, +4.0). If object A has a charge of -5.8 µC and object B has a charge of +8.9 µC, then what is the resultant electric field strength at the origin(magnitude) .
5.4 x103 N/C
4.4 x10-3 N/C
5.4 x10-3 N/C
15.4 x103 N/C
Object A has a x-y coordinate position of (+5.0, 0.0). Object B has a x-y coordinate location of (0.0, +4.0). If object A has a charge of -5.8 µC and object B has a charge of +8.9 µC . what would be the magnitude of the net electric force upon a +1.3 µC charge if placed at the origin.
0.0060 N
0.0080 N
0.0090 N
0.0070 N
. A 12-Volt battery would supply ___.
3 Coulombs of charge with 4 Joules of energy
4 Coulombs of charge with 3 Joules of energy
12 Coulombs of charge with 1 Joule of energy
1 Coulomb of charge with 12 Joules of energy
The drift velocity of mobile charge carriers in electric circuits is ____.
very fast; less than but very close to the speed of light
fast; faster than the fastest car but nowhere near the speed of light
slow; slower than Michael Jackson runs the 220-meters
very slow; slower than a snail
The diagram at the right shows two identical resistors - R1 and R2 - placed in a circuit with a 12-Volt battery. If a third resistor (R3), identical to the other two, is added in parallel with the first two, then the overall resistance will ____ and the overall current will ____.
increase, increase
decrease, decrease
increase, decrease
decrease, increase
A high resistance light bulb and a low resistance light bulb are connected in series to a 6-Volt pack of batteries. Which of the two light bulbs will shine the brightest?
They will have the same brightness.
The low-R bulb will shine more brightly.
The high-R bulb will shine more brightly.
None of the above
If the current at a given point in a circuit is 2.5 Amp, then how many electrons pass that point on the circuit in a time period of 1 minute.
Answer:
9.375 x 1020 electrons
9.375 x 1021 electrons
9.375 x 1019 electrons
9.375 x 1018 electrons
