Electronics and Communication Engineering - Electronic Devices and Circuits
Exercise : Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 14
- Electronic Devices and Circuits - Section 27
- Electronic Devices and Circuits - Section 26
- Electronic Devices and Circuits - Section 25
- Electronic Devices and Circuits - Section 24
- Electronic Devices and Circuits - Section 23
- Electronic Devices and Circuits - Section 22
- Electronic Devices and Circuits - Section 21
- Electronic Devices and Circuits - Section 20
- Electronic Devices and Circuits - Section 19
- Electronic Devices and Circuits - Section 18
- Electronic Devices and Circuits - Section 17
- Electronic Devices and Circuits - Section 16
- Electronic Devices and Circuits - Section 15
- Electronic Devices and Circuits - Section 1
- Electronic Devices and Circuits - Section 13
- Electronic Devices and Circuits - Section 12
- Electronic Devices and Circuits - Section 11
- Electronic Devices and Circuits - Section 10
- Electronic Devices and Circuits - Section 9
- Electronic Devices and Circuits - Section 8
- Electronic Devices and Circuits - Section 7
- Electronic Devices and Circuits - Section 6
- Electronic Devices and Circuits - Section 5
- Electronic Devices and Circuits - Section 4
- Electronic Devices and Circuits - Section 3
- Electronic Devices and Circuits - Section 2
36.
In the figure circuit, V1 = 40 V. When R is 10 Ω. When R is zero, the value of V2 will be
Answer: Option
Explanation:
When R = 0, it will be short circuited and 10 Ω and 20 Ω will come in series, and potential across V1 will become 40 V by divider rule.
37.
The Thevenin Resistance of the circuit is
Answer: Option
Explanation:
Diode is a non linear circuit it will be removed
Nodal analysis
VTH = 20volt.
38.
In the circuit shown in the given figure, RL will absorb maximum power when its value is
Answer: Option
Explanation:
Circuit can be rearranged as follows
Now find 
and find RL = ?.
39.
In an RC series circuit excited by dc voltage E, the current at t = 0 is
Answer: Option
Explanation:
Since the capacitor does not have any charge initially, 
40.
The current through a 10 Ω resistance in a dc circuit having two emf sources is 3A. If this resistance is changed to 20 Ω, the new value of current will be
Answer: Option
Explanation:
The current will be less than 3 A. It may not be 1.5 A because other resistance in the circuit also affect the value of current.
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