Laney College Physics 4B 7) Which one of the following statements concerning res

Question

Laney College Physics 4B 7) Which one of the following statements concerning resistors in series is true? A) The voltage across each resistor is the same. B) The current through each resistor is the same. C) The power dissipated by each resistor is the same. D) The rate at which charge flows through each resistor depends on its resistance. E) The total current through the resistors is the sum of the current through each resistor. 8) Complete the following statement: A simple series circuit contains a resistance R an ideal battery. If a second resistor is connected in parallel with R A) the voltage across R will decrease. B) the current through R will decrease. C) the total current through the battery will increase. D) the rate of energy dissipation in R will increase. E) the equivalent resistance of the circuit will increase. 9) Current flows through a resisitor A) with no direction since it is not a vector. B) from any potential to any different potential. C) from high potential to low potential. D) from low potential to high potential. E) cannot be determined. 10) What is the relation between the drift velocity, ve and the rms velocity Vis of the free electrons in a wire? D) You can't compare them Extra Point: A point charge sits alone and there is a point P at distance r from the What can you say about the force F, the electric field E, the energy U, and the charge voltage V produced at point P? A) F and E are produced, U and V are not produced B) F and U are produced, E and V are not produced C) F and E are not produced, U and V are produced D) E and V are produced, F and U are not produced E) none of them are produced.

Explanation / Answer

7. only statement true is that current through each resistor is same  

this is property satisfied by resistors in series option B

8. when resistor connected in parallel, then equivalent resistance decreses so total current through the battery will increase

option C

9. as we know current always flows from high potential tp low potential

so option C is correct

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