1. The manufacturer rated these capacitors at the following values: Capacitor Rated Value
uF
1 100
2 220
3 330
4 390
5 470
6 680
Compare your experimental value of C to the rated value.
Probably you'll notice that your measured value is a little bit different to the one listed above. Let's think about where this error comes from. Below, we've suggested three potential sources of error that might result in your measurement being slightly off from the correct value.
The capacitors have an equivalent series resistance. This resistances increases the effective R of the circuit.
The Analog meter does not react fast enough to the circuit.
The value of C that the manufacturer rated the capacitor for is too high
2. First state if your measurement over or underestimated the rated value of the capacitor.
For each source of error we identified above, state whether that effect would cause your measurement to be larger or smaller than the capacitor's actual value.
Hint: Discuss each source given and number it your answer should be similar to___.
The equivalent resistance my measurement which is supported by___.

For problems 1-3, consider a simple dc brush motor with a permanent magnet stator. with an an consider a simple dc brush motor with a permanent magnet ae supply voltage of 100 v, the no-load speed of the motor is 1000 rpm. this motor can provide a torque of 1.9 n-m at 800 rpm drawing a current of 2 a current are both zero at no load.) 1. with an armature supply voltage of 100 v, the motor is operated at 900 rpm. what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input? what is the energy efficiency of the motor? with an armature supply voltage of 100 v, the motor is operated at 1100 rpm (where it acts as a generator). what torque input is required? what mechanical power is required what current is generated? what is the electrical power generated? what is the energy efficiency of the motor acting as a generator? 2. with an armature supply voltage raised to 120 v, the motor is operated at 1000 rpm. what is the no-load speed? what is the motor torque? what is the mechanical power delivered by the motor? what is the current draw? what is the electrical power input what is the energy efficiency of the motor? 3.

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