Kirchhoff\'s loop rule is a statement of the law of conservation of momentum. th

Question

Kirchhoff's loop rule is a statement of the law of conservation of momentum. the law of conservation of charge. the law of conservation of energy. the law of conservation of angular momentum. Newton's second law. A combination of a 2.0-Ohm resistor in series with 4.0-Ohm resistor is connected in parallel with a 3.0-Ohm resistor. What is the equivalent resistance of this system? 2.0 Ohm 3.0 Ohm 4.0 Ohm 9.0 Ohm An ideal 100-V dc battery is applied across a series combination of four resistors having resistances of 20 Ohm, 40 Ohm, 60 Ohm, and 80 Ohm. What is the potential difference across the 40-Ohm resistor? 20 V 40 V 60 V 80 V 100 V A battery has an emf epsilon = 78.0 V and an internal resistance r = 4.0 Ohm, as shown in the figure. A current of 4.7 A is drawn from the battery when a resistor R is connected across the terminals a and b. The power dissipated by the resistor R is closest to 280 W. 340 W. 320 W. 300 W. 370 W.

Explanation / Answer

4) C
5) C
6) A
7) A

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