Question

7) Four unequal resistors are connected in a parallel circuit. Which one of the following statements is correct about this circuit? A) The total resistance is less than the smallest resistor. B) The total resistance is equal to the average of the resistance of all the resistors. C) The total resistance is equal to average of the four resistors. D) The total resistance is more than the largest resistor. E) None of the other answers is correct. 8) 2? 2? I a 2? b 2? 2? Five equal resistors, of value 2.0 ? each, are connected as shown in Figure above What is the equivalent resistance of this circuit? A) 1.0 ? (B) 10.0 ? (C) 2.0 ? (D) 6.0 ? (E) 0.40 ? 9) When unequal resistors are connected in parallel in a circuit, A) the same current always runs through each resistor. B) the potential drop is always the same across each resistor. C) the largest resistance has the largest current through it. D) the power generated in each resistor is the same. 10) A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 x 10-8 ? - m. How long would it have to be to have a resistance of 1.0 ?? A) 5.9 x 106 m (B) 5.9 m (C) 5.9 x 104 m (D) 590 m (E) 5.9 km

          7) Four unequal resistors are connected in a parallel circuit. Which one of the following statements is
correct about this circuit?
A) The total resistance is less than the smallest resistor.
B) The total resistance is equal to the average of the resistance of all the resistors.
C) The total resistance is equal to average of the four resistors.
D) The total resistance is more than the largest resistor.
E) None of the other answers is correct.

8)
2? 2?
I a 2? b
2? 2?

Five equal resistors, of value 2.0 ? each, are connected as shown in Figure above What is the
equivalent resistance of this circuit?
A) 1.0 ? (B) 10.0 ? (C) 2.0 ? (D) 6.0 ? (E) 0.40 ?

9) When unequal resistors are connected in parallel in a circuit,
A) the same current always runs through each resistor.
B) the potential drop is always the same across each resistor.
C) the largest resistance has the largest current through it.
D) the power generated in each resistor is the same.

10) A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 x 10-8 ? -
m. How long would it have to be to have a resistance of 1.0 ??
A) 5.9 x 106 m (B) 5.9 m (C) 5.9 x 104 m (D) 590 m (E) 5.9 km

7) Four unequal resistors are connected in a parallel circuit. Which one of the following statements is
correct about this circuit?
A) The total resistance is less than the smallest resistor.
B) The total resistance is equal to the average of the resistance of all the resistors.
C) The total resistance is equal to average of the four resistors.
D) The total resistance is more than the largest resistor.
E) None of the other answers is correct.

8)
2? 2?
I a 2? b
2? 2?

Five equal resistors, of value 2.0 ? each, are connected as shown in Figure above What is the
equivalent resistance of this circuit?
A) 1.0 ? (B) 10.0 ? (C) 2.0 ? (D) 6.0 ? (E) 0.40 ?

9) When unequal resistors are connected in parallel in a circuit,
A) the same current always runs through each resistor.
B) the potential drop is always the same across each resistor.
C) the largest resistance has the largest current through it.
D) the power generated in each resistor is the same.

10) A certain metal wire has a cross-sectional area of 1.0 cm2 and a resistivity of 1.7 x 10-8 ? -
m. How long would it have to be to have a resistance of 1.0 ??
A) 5.9 x 106 m (B) 5.9 m (C) 5.9 x 104 m (D) 590 m (E) 5.9 km

Added by Angela G.

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