Cumberland County College 1. What is the equivalent resistance of two resistor o

Question

Cumberland County College 1. What is the equivalent resistance of two resistor of resistances 8-o and 20-o in series? a) 200 b) 12-K2 C)28 e) none of these 8 n and 20-o in parallel? 2. What is the equivalent resistance of two resistor less than 8 e) none of these a) 20-2 b) 12-C2 c)28 -C2 3. The equivalent resistance of 10 resistors one of resistance 1 KS2 and another resistance 1o and of the rest with different resistance between 1 Kn and 10 Kn put in a series configuration c) between 1 Knand 10 KK2 larger than 10 K2O a) smaller than 1 KK2 e) not enough information is given d) equal to their average 4.. The equivalent resistance of 10 resistors, one of resistance 1 ko and another of resistance 10 Kn and the rest with different resistance between 1 Ko and 10 Ko put in a parallel configuration is c) between 1 KS2 and 10 Kn b) larger than 10 KQ a) smaller than 1 KQ equal to their average e) not enough information is given 5. What is the current flowing through the 30 resistor of the 20 A circuit in the following figure 12 3Q c) 8 A b) 4 A a) 2 A e) none of these 6. Which of the following resistances, if connected across a 10v dissipate the leastpower? e) not enough info given b) 4-92 a) 2-2 7. What is the potential difference across the 2-n resistor of the following figure? 40 8C2 c) 3-V b) 2-V e), 5-V 8. one of the in question 7 dissipates the most power? Which resistors d) same for all e) not enough info give b) 4-2 a) 2-2 9. Rate of flow of charge through a wire to tank b) the height of the water ll of these e) none of these a) going through a pipe c) size of the pipe 10. Potential difference across a battery compared to a water system is a to urrent going through a pipe b) the height of the water tank of these d) all of these e) none c) size of the pipe Consider the two vectors of the following figure 11. What are the components of the resultant? b) 6,1 a) 4,7 d) 4, 3 c) 6,7 e) none of these

Explanation / Answer

According to the chegg guidelines I am allowed to answer only 1 question at a time .

1) R1 = 8 ohms and R2 = 20 ohms

If in series then R(eq) = R1 + R2 = 8 ohms + 20 ohms = 28 ohms ========ANSWER) OPTION C)

2) R1 and R2 in parallel so

R(eq) = ( 1/ R1 + 1/R2 ) ^ -1 = ( 1/8 + 1/20 ) ^ -1 = 5.714285 ohms ======Less than 8 ohms ===OPTION D)

PLEASE RAISE OTHER QUESTION SEPERATELY.

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