In inverter circuit ________ transistors is used as load

The price of a non-inverter AC is Rs. 7000 less than that of an inverter AC. If the sum of the prices of 5 inverter ACs and the prices of 3 non-inverter ACs is Rs. 315000 what is the percent by which the price of an inverter AC is more than that of the price of non-inverter AC?

A

20%

B

16%

C

24%

D

25%

E

22%

In a 3-input CMOS NAND gate, the substrate terminals of NMOS transistors are grounded (lowest potential available in the circuit) and the substrate terminals of PMOS transistors are connected to VDD (maximum positive potential available in the circuit). Which of the following transistors may suffer in this circuit from the body bias effect?

A

2 NMOS transistors

B

2 PMOS transistors

C

1 NMOS transistor

D

1 PMOS transistor

Among the five objects, Gas stove, Washing machine, Refrigerator, Inverter and Microwave oven: the Washing machine is twice as heavy as the Inverter; the Gas stove is one and half time as heavy as the Microwave oven; the Washing machine and Microwave oven together weigh as much as the Gas stove and Inverter together; the Refrigerator and Inverter together are one and half times as heavy as the Gas stove. Which is the heaviest among the five objects?

A

Microwave oven

B

Washing machine

C

Refrigerator

D

Gas stove

Consider the following statement: 1. Initial load tests and routine load tests are carried out on test piles and working Piles, respectively. 2. In a pile load test, the allowable load can be taken equal to half the ultimate load at which the total settlement amounts to one-tenth of the pile diameter. 3. In a pile load test, the allowable load can be taken equal to two-thirds of the total toad which causes a plastic settlement of 6 mm. Which of the above statements are correct?

A

1, 2 and 3.

B

1 and 2 only

C

1 and 3 only

D

2 and 3 only

In inverter circuit . . . . . . . . . transistors is used as load

A

Enhancement mode

B

Depletion mode

C

All of the mentioned

D

None of the mentioned

When the input of the CMOS inverter is equal to Inverter Threshold Voltage Vth, the transistors are operating in:

A

N-MOS is cutoff, p-MOS is in Saturation

B

P-MOS is cutoff, n-MOS is in Saturation

C

Both the transistors are in linear region

D

Both the transistors are in saturation region

In the circuit shown in the figure, the channel length modulation of all transistors is non-zero (λ ≠ 0). Also, all transistors operate in saturation and have negligible body effect. The ac small signal voltage gain (Vo/Vin) of the circuit is

A

\( - {g_{m1}}\left( {{r_{01}}\parallel {r_{02}}\parallel {r_{03}}} \right)\)

B

\( - {g_{m1}}\left( {{r_{01}}||\frac{1}{{{g_{m3}}}}||{r_{03}}} \right)\)

C

\( - {g_{m1}}\left( {{r_{01}}||\left( {\frac{1}{{{g_{m2}}}}||{r_{02}}} \right)||{r_{03}}} \right)\)

D

\( - {g_{m1}}\left( {{r_{01}}||\left( {\frac{1}{{{g_{m2}}}}||{r_{03}}} \right)||{r_{02}}} \right)\)

The number of diodes, SCRs and other components in full-bridge inverter McMurray inverter is ____________ of those in half-bridge McMurray inverter.

A

same

B

double

C

three times

D

none of the mentioned

A single phase voltage source inverter is feeding a purely inductive load as shown in the figure The inverter is operated at 50 Hz in 180o square mode. Assume that the load current does not have any DC component. The peak value of the inductor current i0 will be

A

6.37 A

B

10 A

C

20 A

D

40 A

Consider the following points: 1) Inherent short circuit operation 2) Regenerative capability 3) Need for inverter grade thyristors 4) Voltage spikes across the load Which of the following are true with CSI (current source inverter)

A

1, 2 and 3

B

2, 2 and 4

C

1, 3 and 4

D

1, 2 and 4

In inverter circuit ________ transistors is used as load

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