SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Yes
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NO
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Either A or B
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None of the above
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Detailed explanation-1: -Ohm’s Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit.
Detailed explanation-2: -The equation for electrical power is P=IV. Where P is electrical Power, I is current, and V is voltage. If you multiply power by time this will give you the total energy, which is generally given in kilowatt-hours. The power equation and the Ohm’s law can be combined to produce P=V^2/R and P=I^2R.
Detailed explanation-3: -Ohm’s Law is V = IR, where V = voltage, I = current, and R = resistance. Ohm’s Law allows you to determine characteristics of a circuit, such as how much current is flowing through it, if you know the voltage of the battery in the circuit and how much resistance is in the circuit.
Detailed explanation-4: -Electrical Energy in Circuits So if we know how much power, in Watts is being consumed and the time, in seconds for which it is used, we can find the total energy used in watt-seconds. In other words, Energy = power x time and Power = voltage x current.