# Olenoid is constructed by wrapping 52 turns of wire around a cylinder with a cross-sectional area of 8.0 x 10-4 m2. When the solenoid is

olenoid is constructed by wrapping 52 turns of wire around a cylinder with a cross-sectional area of 8.0 x 10-4 m2. When the solenoid is shortened by squeezing the turns closer together, the inductance increases to 9.30 x 10-5 H. Determine the change in the length of the solenoid.

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1. Expert says:

2. Expert says:

i think the answer would be b

3. Expert says:

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.  the charge on each coin is :     52.2 uc

4. Expert says:

total distance/total time

(85 + 82)/(5+3)

167/8

20 just over