Author Question: Two 10 coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If each of these ... (Read 72 times)

imanialler · **on:** Jul 29, 2018

Two 10 coins (dimes) carrying identical charges are lying 2.5 m apart on a table. If each of these coins experiences an electrostatic force of magnitude 2.0 N due to the other coin,

how large is the charge on each coin? (k = 1/40 = 9.0 109 N m2/C2)
A) 5.2 C B) 26 C C) 2.6 C D) 52 C E) 6.7 C

Question 2

In a series RLC ac circuit, a second resistor is connected in series with the resistor previously in the circuit. As a result of this change, what happens to the impedance of the circuit?

A) It increases.
B) It does not change.
C) It increases for frequencies below resonance and decreases for frequencies above resonance.
D) It decreases for frequencies below resonance and increases for frequencies above resonance.
E) It decreases.