In the Atomic Nucleus, together with the Protons, we find another particle, the
ID: 1574235 • Letter: I
Question
In the Atomic Nucleus, together with the Protons, we find another particle, the Neutron, which is also Positively Charged.
True
False
Two different appliances are attached to the terminals of a battery. The appliance with higher Electric Resistance will allow more Electric Current flow.
True
False
A 60-Watt light bulb is connected to a typical 120-volts outlet. How much is the Current that flows across the bulb?
0.5 A
1 A
2 A
None of the above
In a conducting wire (made of a metal like cooper) the free electrons are responsible for Electric Currents.
True
False
0.5 A
1 A
2 A
None of the above
The unit to measure Electric Potential is the "Volt" (V) and is defined by: 1C 1C 1j None of the aboveExplanation / Answer
Potential is equal to ratio of work done to charge.
V = W / q
Therefore, units can be written as
Volt = Joule / Coulomb
It imples that ; 1 V = 1 J / 1 C is correct answer.
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Neutrons are neutral particles. That is the charge on neutrons is zero.
Thus, the given statement is False
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Formula for power:
P = I V
Therefore, the current, I = P / V = 60 W/ 120 V = 0.5 A
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In accordance with Ohm's law,
V = I R
Thus, the units are
Volts = Ampere x Ohms
Thus, Amperes = Volts / Ohms is correct answer.
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Yes, the free electrons are responsible for electric current in conductors.
Thus, the given statement is True