The voltage across the ends of a resistor are doubled. How will this change the
ID: 2276810 • Letter: T
Question
The voltage across the ends of a resistor are doubled. How will this change the value of its resistance, R?
R will be half of its previous value.
R will be unchanged.
R will be twice its previous value.
R will be four times its previous value.
The voltage across the ends of a resistor are doubled. How will this change the power that it dissipates?
The power dissipated will be half of its previous value.
The power dissipated will be unchanged.
The power dissipated will be twice its previous value.
The power dissipated will be four times its previous value.
R will be half of its previous value.
R will be unchanged.
R will be twice its previous value.
R will be four times its previous value.
Explanation / Answer
Resistance unchanged
four times, P = V^2/R
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