Electric Circuits Answers

A certain resistance thermometer at triple point of water has resistance of 152:0Ê. What is the temperature of the system in degrees celcius when the resistance of the thermometer is 230:51Ê?

deduce an expression for electric potential at point due to positive point charge

out of following which machine is also known as generalized transformer? synchronous motor or dc motor?


a charge of 240 c is transferred in 2 minutes the current?

a proton traveling at a speed of 1x10^6 m/s, is injected into a vertical electric field witha strength of 100 N/C. The electric field is directed downward. If the proton is directed upward at an angle of 40 degrees with the horizontal, calculate how far horizontally the proton will travel prior to returning to launch site.

A parallel-plate capacitor has a plate area of 0.2m2 and a plate separation of 0.1mm. To
obtain an electric field of 2.0 × 106 V/m between the plates, the magnitude of the charge on
each plate should be
ANS : 7.1 × 10−6 C
i dont get why, i worked it a 100 time it gave me 3.5 × 10−6 C!!

An alternating current is passed through two electrodes immersed in a salt water bath and impedance determined. Next, salt water of the same molarity is made to flow through the bath and impedance determined between the said electrodes. Would the values of impedance obtained differ?

the charge per unit length of the four quadrant of the ring is 2λ,-2λ,λ,-λ.THE electric field at the center is