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