A parallel pinto capacitor is Ally charged using a 12-V battery. If the plates o

Question

A parallel pinto capacitor is Ally charged using a 12-V battery. If the plates of the capacitor has charge Q = 6 mu C. then the amount of work done by battery is 2.4 Times 10^-5 J 3.0 Times Times 10^-5 1.8 Times 10^-15 3.6 Times 10^-5 J The current drawn from an ideal 12-V battery when a 500Ohm resistor is connected across its terminals is: 240 mA 2400 mA 24mA 2.4 mA A charged particle travels un deflected through perpendicular electric and magnetic Helds. The field strengths are E=3000 N C and B = 10 mT. The velocity of the charged particle is: 1.0 times 10^5 2.0 Times 10^5 3.0 Times 10^5 4.0 Times 10^5

Explanation / Answer

W = U = QV/2

W = 12 * 6 * 10^-6 /2

W = 3.6 x 10^-5 J

part 2 )

I = V/R

I = 12/500 = 0.024 = 24 mA

part 3 )

undeflected means

electric force = magnetic force

qE = qvB

v = E/B = 3 x 10^5 m/s

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