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mylen [45]
3 years ago
12

The rotor is driven at ????m = 120π rad/sec. If the stator winding carries a current of 5 A (rms) at 60 Hz, determine the instan

taneous voltage and rms voltage induced in the rotor coil. Determine the frequency of the rotor induced voltage. (b) Suppose the stator and rotor coils are connected in series and a current of 5

Engineering
1 answer:
Levart [38]3 years ago
8 0

Answer:

(a) Frequency induced voltage of motor is 120 Hz

(b) The speed at which the machine will produce an average torque is 240π rad/s. Maximum Torque is 1.0 Nm

Explanation:

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Dowry practice is considered to be a social problem . justify<br>​
Artemon [7]

Answer:

mark me brailinist

Explanation:

Dowry is a social evil in the society, that has caused unimaginable tortures and crimes towards women. The evil has taken lives of women from all stratas of society - be it poor, middle class or the rich. However it is the poor who succumb and fall prey to it, more due to their lack of awareness and education.

It is because of the dowry system, that daughters are not valued as much as the sons. In the society, many a times it has been seen that they are seen as a liability and are often subjected to subjugation and are given second hand treatment may it be in education or other amenities.

Today the government has come up with many laws and reforms, not only to eradicate the dowry system, but also to uplift the status of the girl child by bringing in many schemes.

It is now for the society at large to become aware and understand the situation. It up to all of us to take active steps in bringing about the necessary change and stop either giving or taking dowry. We must all know that we should start valuing our daughters first, so that others know their value once they grow up.

7 0
2 years ago
The voltage valve at which a zirconia O2S switches from rich to lean and lean to rich is
frez [133]
I think the answer is C) 0.25v I’m not sure tho
6 0
3 years ago
A copper block receives heat from two different sources: 5 kW from a source at 1500 K and 3 kW from a source at 1000 K. It loses
LUCKY_DIMON [66]

Answer:

a) Zero

b) the rate of entropy generation in the system's universe = ds/dt = 0.2603 KW/K

Explanation:

a) In steady state  

Net rate of Heat transfer = net rate of heat gain -  net rate of heat lost  

Hence, the rate of heat transfer = 0

b) In steady state, entropy generated  

ds/dt = - [ Qgain/Th1 + Qgain/Th2 - Qlost/300 K]

Substituting the given values, we get –  

ds/dt = -[5/1500 + 3/1000 – (5+3)/300]

ds/dt = - [0.0033 + 0.003 -0.2666]

ds/dt = 0.2603 KW/K

 

6 0
4 years ago
a television set having apower rating of 120w and electric lawnmower of power rating 1kw are both connected to a 250v supply if
Soloha48 [4]

Answer:

<u>Television </u>

Power = 120 w

p.d = 240 v

I = p / v

I = 120 / 240 = 0.5

Fuse can be used 3A

<u>lawnmower</u>

Power = 1000w

p.d = 240 v

I = 1000/ 240 = 4.16

Fuse can be used = 5A

8 0
3 years ago
You should always engage the parking brake whenever using any type of lift.
Shtirlitz [24]

Answer:

I would yes every time so it would not role off the lift

Explanation:

8 0
3 years ago
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