Question

Multiple Choice (6 pts each) 1. An air filled capacitor consisting of two parallel plates separated by a distance d is cons battery of constant voltage V and acquires a charge Q. While still connected to the ba slab of dielectric with 3 is inserted between the plates of the capacitor. What happe the capacitance and charge on the capacitor? Capacitance a) Increase b) Decrease c) Increase d) Decrease e) Increase Charge Stay the same Stay the same Increase Decrease Decrease Twe cylindrical resistors Rand R, are made of identical material. R, has twice the length of R, but half the radius of R. They are connected to a battery V as shown. Compare the currents flowing through R, and through Rs a) = 42 b) != 1/45 .) 1 =B1 d) 1 / The em and the internal resistance of a batters are as shown in the une. If current is drawn from the battery when a resister R is connected cross the terminals of the battery, what is the power dissipated by the resister R? 440 W b) 700 W c) 620 W d) 530 w c) 790 W

Answer 1

Andi change Capacitance crease stay the same saserted of diebetiso slabk=3 the pofential will be deaveses, or yooks Y We have Popa . shou's law carent & - 16 > 12 žu again Raef – neriffale Laws fos, RR, P = Px P - Qxt and R=R2, Rex altext- - 20x 8 x Res 2120) xl por ED > 14 > I-4f2 a) (v=AL

Given, E = V = 95.0V, 18.34 We hare, Power (P) = VI 95.0x8.3 105.5 W (b) pa yoow