SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The current will decrease by one-fourth because current has an inverse relationship to the number of resistors that are in series.
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The current will decrease by one-half because current has a direct relationship to the voltage of the circuit.
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The current will double because current has an inverse relationship to the voltage of the circuit.
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The current will quadruple because current has a direct relationship to the number of resistors that are in series.
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Detailed explanation-1: -The same current flows through each resistor in series. Individual resistors in series do not get the total source voltage, but divide it. The total potential drop across a series configuration of resistors is equal to the sum of the potential drops across each resistor.
Detailed explanation-2: -Series Resistor Voltage The voltage across each resistor connected in series follows different rules to that of the series current. We know from the above circuit that the total supply voltage across the resistors is equal to the sum of the potential differences across R1, R2 and R3. VAB = VR1 + VR2 + VR3 = 9V.
Detailed explanation-3: -In a series circuit, the current is the same at each resistor. If the light bulbs are identical, then the resistance is the same for each resistor. The voltage drop (I•R) will be the same for each resistor since the current at and the resistance of each resistor is the same.
Detailed explanation-4: -The supply voltage is shared between components in a series circuit. The sum of the voltages across components in series is equal to the voltage of the supply. The voltages across each of the components in series is in the same proportion as their resistances .