SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The voltage will stay the same because the voltage remains constant through parallel resistors.
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The voltage will increase by a factor of 2 because the voltage constantly increases through parallel resistors.
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The voltage will decrease by a factor of 2 because voltage is directly proportional to the number of parallel resistors a circuit contains.
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The voltage will increase by a factor of 3 because voltage is indirectly proportional to the number of parallel resistors a circuit contains.
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Detailed explanation-1: -When a resistor is removed from a parallel combination, the following changes will occur: The equivalent resistance of the circuit increases. The current through other resistors increases. The power consumed by each resistor increases.
Detailed explanation-2: -When one of the resistors is removed, the total resistance of the circuit will decrease (from (1)). As can be seen (from (2)) that the current is inversely proportional to resistance. So, with the decrease in the total resistance, the total current will increase.
Detailed explanation-3: -In parallel circuits, each component is separately connected to the positive and negative of the power supply (cell or battery). This means that if you remove, disconnect or break one of the components in a branch, it will barely affect the other branches/ components. Most household electronics are parallel circuits.
Detailed explanation-4: -If three resistors are placed in parallel branches and powered by a 12-volt battery, then the voltage drop across each one of the three resistors is 12 volts. A charge flowing through the circuit would only encounter one of these three resistors and thus encounter a single voltage drop of 12 volts.