Which of the following quantities must be the same for resistors in series A) vo

Question

Which of the following quantities must be the same for resistors in series A) voltage B) current C) power D) energy E) none of the above. Two resistors (A and B) are connected in series to a 12V battery. Resistor A has 9 if. Which resistor has the least resistance? A) A B) B C) both have the same D) can't tell from the data give Two resistors (A and B) are connected in parallel to a 12V battery. Resistor A has 2.0A in it and the total current in the battery is 3.0A. Which resistor has the most resistance? A) A B) B C) both have the same D) can't tell from the data give To accurately measure the voltage across a 1 k Ohm resistor, the voltmeter should have a resistance that is A) much larger than 1 k Ohm B) much smaller than 1 k Ohm C) about the same as 1 k Ohm D) zero E) none of the above. To accurately measure the current in a 1 k Ohm resistor, the ammeter should have a resistance that is A) much larger than 1 k Ohm B) much smaller than 1 k Ohm C) about the same as 1 k Ohm D) as large as possible E) none of the above. Which of the following statements concerning spherical mirrors is correct? A) A converging mirror alone can produce an inverted virtual image B) A diverging mirror alone can produce an inverted virtual image C) A diverging mirror alone can produce an inverted real image D) A converging mirror alone can produce an inverted real image

Explanation / Answer

7.) current is same in series circuit

option B is correct

8.)option B is correct

V = IR

as current is same so grater the R greater the potential across resistance

9.)option B is correct

as we can see resistance are connected in parallel now resistance which draw less current has bigger resistance

10.) option A is correct

volmeter is always connected in parallel to measure the voltage across resistance and it should have very high resistance as compare to resistor so that most of the current pass through resistance only.

11.)option B is correct

ammeter should have smaller resistance so that it doesn't drop significant potential

12.)option C is correct

diverging mirror can produce real and inverted image

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