Physics, 25.09.2020 22:01 stephanieboyd
9 A particular experiment requires a very large current to be provided for a short time.
(a) An average current of 200 A is to be supplied to a coil of wire for a time of
1.4 x 10 s. The resistance of the coil is 0.50.12.
Show that the charge that flows through the coil during this time is about 3 C.
Q=
fil) The circuit shows how a capacitor could be charged and then discharged through
the coil to provide the current.
+ DC
supply
coil of resistance
0.5092
The circuit contains a capacitor of capacitance 600 JF. This capacitor is suitable
to provide the current for 1.4 x 10's.
Explain why the capacitor is suitable.
Answers: 3
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Two resistors r1 and r2 may be connected either in series or parallel across an ideal battery with emf ε. we desire the rate of energy dissipation of the parallel combination to be 8.75 times that of the series combination. if r1 = 105 ω, what are the (a) smaller and (b) larger of the two values of r2 that result in that dissipation rate?
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Newtons view of arrangement of the universe. don't copy from anywhere.
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The stopwatch used by a student to measure velocity of a pulse in a slinky was of least count 0.1 second. he stops the stopwatch when a pulse has made 3 journeys from one end to the other of the slinky. he finds the seconds hand to be at 52nd division. calculate the correct time noted by him.
Answers: 3
9 A particular experiment requires a very large current to be provided for a short time.
(a) An ave...
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