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1. ### A Differential Capacitive Transducer?

The amplifier gain is 101. Its input resistance is very high because of the feedback. The capacitance becomes a divider with 15.1pF and 14.9pF in series. The ratio is not frequency dependent within reason. The initial capacitance on each side...

2 Answers · Science & Mathematics · 26/04/2014

2. ### Finding total impendence of an inductor?

... formulas allow for converting from one representation to the other. PF (Power factor) = true power / apparent power = cos(θ) from trig. θ = arccos...

1 Answers · Science & Mathematics · 04/04/2014

3. ### At what PF the voltage regulation of a transformer is maximum value?

Zero.

2 Answers · Science & Mathematics · 31/03/2014

4. ### 1hp how much amps when 440 volts?

Hp = eff * V * I * PF * 1.73 / 746 eff is the efficiency of the motor. If the Hp ...

4 Answers · Science & Mathematics · 23/03/2014

5. ### Why does reactive power use transmission line capacity?

...factor of 0.5, the KVA requirement for this load will be KVA = KW / PF or KVA = 500 / 0.5 = 1000. This indicates the 500 KW...

2 Answers · Science & Mathematics · 06/03/2014

6. ### can I add more starting wattage to a small power generator by adding more starting capacitors ?

...if too big, make capacitive power factor. The fridge has a power factor (PF) which means it draws more current than the real power suggests...

5 Answers · Science & Mathematics · 25/02/2014

7. ### How do I run a regular electric device on batteries?

...same. If the motor is rated in watts and a power factor (PF) instead of voltage and current, divide watts by PF to get KVA (a...

4 Answers · Science & Mathematics · 22/02/2014

8. ### i have 10 kva electric generator what kind of torque needed to start?

...a normally rated 10 KVA generator is KW = KVA * PF = 10 * 0.8 = 8 KW. The theoretical HP is 746 watts...

2 Answers · Science & Mathematics · 25/02/2014

9. ### How do you find peak current?

It's more obvious than you think (or I haven't woken up enough yet.) It's just 18300V ⁄ 140Ω ≈ 130.7A. That's so, because the capacitor is charged up and acts like a simple voltage source (for only a moment) that...

2 Answers · Science & Mathematics · 17/02/2014

10. ### Question on input impedance of measuring instruments?

...so the frequency response is not disturbed. It would be only 2 pF in the example, but still essential. So always use the X10 probe unless there...

3 Answers · Science & Mathematics · 20/02/2014