Question

# 1. An electron is to be accelerated in a uniform electric field having a strength of...

1. An electron is to be accelerated in a uniform electric field having a strength of 8 ×106 V/m . What energy in keV is given to the electron if it is accelerated through 0.8 m

2. What capacitance is needed to store 6.14 μC of charge at a voltageof 120 V? Give answer in terms of 10-8 F

3. In open heart surgery, a much smaller amount of energy will defibrillate the heart. Heart defibrillators store 39 J of energy and the voltage is applied to a 8 μFcapacitor. Find the amount of stored charge. Give answer in terms of mC.

4. What is the potential 0.52×10-10 m from a proton (the average distance between the proton and electron in a hydrogen atom)?

5. A 0.3 μF and a 11 μF capacitors are connected in series. Then the pair are connected in parallel with a 3.4 μF capacitor. What is the equivalent capacitance? Give answer in terms of mF

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