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Listen and answer N° 5( constant current charge of a capacitor)
These questions are guide lines for the oral work.
a) Give the composition and unit of cpacitors.
b) Give the value of voltage uC when t = 0.
c) Voltage uC against time is a straight line with a positive slope when t is between 0 and 20 s. Why ?
d) Voltage uC against time remains (...)
mardi 22 novembre 2011
par A.Toorab
par A.Toorab
Listen and answer N° 3 (DC rotating machine)
The following questions are guide lines for your exposé.
Give a full description of the circuit.
Give the value of current’s intensity I and the potential difference U for the generator when the rheostat is at its maximum value.
How do I and U vary when R decreases ? Discuss.
Give the (...)