- Have zero amplitude, because the two sine waves cancel each other
What happened to the capacitor that has been connected across the battery?
- It becomes charged
The output is “0” if all the inputs are “0”?
- OR
What is true about the step up transformer?
- The output voltage is greater than input voltage
Thermocouple
- Becomes warm when current flows through it
DC motor can be looked up as DC Generator when power flows
- Reversed
The Interactive Solar Power system
- Allowed homeowner to sell power to the utility
The voltage amplifier used in high voltage, high current applications. This is the most efficient amplifier
- Switching amplifier
Which is low efficiency rectifier?
- Wide Band Rectifier
DC loadline of a transistor
- has a negative slope
The two input of an Op-amplifier
- Inverting and non-inverting
The SCR will conduct appreciable current
- When anode and gate are both positive with respect to cathode
Scale error of an instrument is
- Due to its scale mark not being place at the place
Class A amplifier is used when
- Minimum distortion desired
In class A amplifier the worst case occur when
- No signal applied
The anthropomorphic arm robot is widely used in spray paint because
- It is most maneuverable
The pin resistor used in Industrial electron heating is in
- hairpin form
The apparatus/instrument made by Lawrence and Leavingstone
- Magnetic resonator
Count up to 9 and reset to the next pulse
- Decade counter
The two transistor class B amplifier usually called _________amplifier.
- Push-pull
The advantage of photodiode
- Used as variable resistor
Advantages of non-servo controlled robot
- high operating speed
low cost
- high repeatability
Wein-bridge oscillator is a
- Stable sine wave audio generator
When correctly bias, Zener diode has a
- Constant voltage across to it
The ripple factor of a power supply is measured by
- Filter efficiency
The Ip/Iv ratio of a tunnel diode is important in
- Computer applications
The number of sub shell in n=4 is equal to
- 4
In low pass filter, the cut off frequency reduced the output voltage to ____of the input voltage.
- 70.7 %
What is the total collector current of Common Base?
- IC = aIE + IC
Transition Time
- it identifies the rise time or the fall time of the output voltage.
Eddy Current
- is caused when a moving magnetic field intersects a conductor, or vice-versa
Shelf life of lithium cell
- 5-10 years
A filter which pass a range of frequency and all others are rejected
- Band pass Filter
High voltage for transmitting power is economically available in
- AC current
How high in terms of working voltage replacement in replacing a capacitor
- at least 10-20% high
A typical Kelvin’s double bridge that has the range of 2O – 10µO has an efficiency of
- +/- 0.05 to +/- 0.2%
Ideal noise factor of an amplifier is
- 0 dB
What is the advantage of electromagnetic meter over a permanent magnet meter?
- the electromagnetic meter is rigid
The process of removing particle suspended into gas by a electrostatic charge and subsequent precipitation
- electrostatic precipitation
Maximum and minimum scale of a measuring device
- range of span
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