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Electric Circuits
A variable rheostat of 2k ohm is used to control the pot.difference across 500 ohm load. If resistance of ab is 500 ohm what is the pot. difference across load ?
Electric Circuits
A bass drum emits a note at a frequency of 160 Hz. Find the wavelength in air attained by this instrument when the speed of sound in air is 340 m/s.
Electric Circuits
Two identical capacitors store different amounts of energy: capacitor A stores 3.8 10-3 J, and capacitor B stores 4.3 10-4 J. The voltage across the plates of capacitor B is 13 V. Find the voltage across the plates of capacitor A?
Electric Circuits
i have a circuit of 2 loops where is one of them is paralell circuit
i found out that the battery in a branch is 20 v and in the other is 5 V .. The R in 20v branch is 5 and in the other is also 5 .. So how is the voltage constant ?!! Knowing that in parallel circuits V is constant ..could you clarify this to me please ??
i found out that the battery in a branch is 20 v and in the other is 5 V .. The R in 20v branch is 5 and in the other is also 5 .. So how is the voltage constant ?!! Knowing that in parallel circuits V is constant ..could you clarify this to me please ??
Electric Circuits
The unique characteristic of the ________ gate is that it produces a HIGH output only when an odd number of HIGH inputs are present.
XNOR
NOR
XOR
OR
XNOR
NOR
XOR
OR
Electric Circuits
Which logic gate will produce an output of 1 whenever the inputs are different and/or zero
NOR
Exclusive-OR
OR
Exclusive-NOR
NOR
Exclusive-OR
OR
Exclusive-NOR
Electric Circuits
_________ can be described as the change in voltage from No-load to full-load condition
Transformer
Rectifier
Voltage Divider
Voltage Regulation
Transformer
Rectifier
Voltage Divider
Voltage Regulation
Electric Circuits
Application of op amps include all the following except __________.
Adder
Subtractor
Integration
Lighting
Adder
Subtractor
Integration
Lighting
Electric Circuits
Circuit protection schemes include the following except __________.
Underload protection
Overload protection
Thermal shutdown
Safe area of operation
Underload protection
Overload protection
Thermal shutdown
Safe area of operation
Electric Circuits
Which of the following is not a valid parameter value of the ideal Op Amp?
Input impedance = infinity
Gain = 200000
Output impedance = Zero
Bandwidth = infinity
Input impedance = infinity
Gain = 200000
Output impedance = Zero
Bandwidth = infinity
