- Remaining Timing :-
(1). The ratio of electron and hole currents in a semiconductor is 7/4 and the ratio of drift velocities of electrons and holes is 5/4, then the ratio of concentrations of electrons and holes will be
- (a). 5/7
- (b). 7/5
- (c). 25/49
- (d). 49/25
- (e). None of these
Answer : 7/5
Explanation:
(2). In the half wave rectifier circuit operating from 50Hz mains frequency the fundamental frequency in the ripple would be
- (a). 25Hz
- (b). 50Hz
- (c). 70.7Hz
- (d). 100Hz
- (e). None of these
Answer : 50Hz
Explanation:
(3). The combination of gates shown below yields
- (a). OR gate
- (b). NOT gate
- (c). XOR gate
- (d). NAND gate
- (e). None of these
Answer : OR gate
Explanation:
(4). Truth table for system of four NAND gates as shown in figure is
- (a). 1
- (b). 2
- (c). 3
- (d). 4
- (e). None of these
Answer : 1
Explanation:
(5). The I-V characteristic of an LED is
- (a). 1
- (b). 2
- (c). 3
- (d). 4
- (e). None of these
Answer : 1
Explanation:
(6). 
- (a). 7.20
- (b). 1.80
- (c). 1.27
- (d). 2.90
- (e). None of these
Answer : 1.27
Explanation:
(7). 
- (a). 1
- (b). 2
- (c). 3
- (d). 4
- (e). None of these
Answer : 4
Explanation:
(8). 
- (a). 1
- (b). 2
- (c). 3
- (d). 4
- (e). None of these
Answer : 2
Explanation:
(9). 
- (a). 1
- (b). 2
- (c). 3
- (d). 4
- (e). None of these
Answer : 1
Explanation:
(10). 
- (a). 30.4
- (b). 60.8
- (c). 91.2
- (d). 121.6
- (e). None of these
Answer : 60.8
Explanation:
Recent Updates
ACHIEVER GALLERY
Result On Nov-2016
Result On Nov-2016
Result On Nov-2016
Word of Mouth
Feedback about SALEM
Feedback about ERODE
Feedback about DHARMAPURI