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lifesaver
Give 15 points!
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gift
Win 25 points!
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fairy
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5
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25
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banana
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15
×
True or False: Current (I) is directly proportional to the resistance (R) of the circuit.
True
False
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15
×
What are the SI units for electric current?
C/S^2
C/s
e/s
-e/s
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15
×
Which statement is NOT true about a galvanic cell?
It uses a spontaneous reaction to produce electricity.
The cathode is negative with respect to the anode.
The voltage of the cell is the difference between the potent
Oxidation occurs at the anode and reduction at the cathode.
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baam
Lose 15 points!
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rocket
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shark
Other team loses 20 points!
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thief
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25
15
×
The resistance of a 50 watt bulb is ___ that of a 100 watt bulb if both run on the same voltage
The same as
1/4
Twice
1/2
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15
×
The amount of work done in moving a charge of 2C across two points having a potential difference of 24 V is
50J
24 J
48 J
%4 J
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15
×
In a circuit, a 33 ohm resistor carries a current of 2 Amp. The voltage across the resistor is
16.5 Volts
132 Volts
66 Volts
33 Volts
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15
×
Electric pressure is called
Power
Energy
Voltage
Resistance
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15
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The S.I unit of power is
Coulomb
Watt
Joule
Watt-Hour
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15
×
What is the oxidation number of nitrogen in the HNO3?
-1
5
6
+1
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eraser
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star
Double points!
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rocket
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thief
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