In the circuit shown, the circle with an A in it represents an ammeter. Which of these statements is correct? Comment on each. a. The meter is in the correct position for measuring the current through R. b. No current will flow through the meter, so it will have no effect. c. The meter will draw a significant current from the battery. R A Q21 Diagram

8.a. Which of the following statements defines a battery?A. Two plates immersed in an electrolyteB. A group of cells connected in series or parallelC. Several plates immersed in an electrolyteD. A single cell 8.b. A secondary battery is a battery thatA. is supplied with a fuel.B. can only be discharged once.C. can be discharged and recharged.D. has been repaired following damage.

Which of the following is TRUE about drift velocity?   A. It refers to the fast movement of electrons after introducing potential difference in a circuit.   B. It refers to the amount of current a conductor can hold   C. It refers to the gradual movement of the electrons towards to the other terminal after introducing potential difference in a circuit   D. It refers to the path the current is taking in a circuit

Car batteries are often rated in amp-hours. This rating indicates the quantity of charge that can pass through the battery before the battery's chemical energy must be restored by the car's generator or some other source. The amp-hour unit is convenient for simple calculations. For example, a 60-amp-hour battery can supply a current of 1.0 A for 60 h (or 60 A for 1.0 h) before going dead. Find the energy stored in the following. (a) a 56 A-h, 14 V car battery (b) a 1.1 A-h, 1.7 V flashlight battery