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erastovalidia [21]
3 years ago
11

When a conductor is moved in a magnetic field, a voltage will be induced on the conductor. However, current won't flow through t

he conductor unless the conductor is
Engineering
1 answer:
marissa [1.9K]3 years ago
3 0

Answer:

Open circuited

Explanation:

On moving a coil of conductor in a magnetic field a voltage is induced through the conductor, this is called Law of Electromagnetic induction.

As the moving coil will induce some voltage in the conductor, but the current through it will be zero unless we do not connect it with a load to complete the circuit.

As in a open circuit, the amount of current flow is zero.

Also, the voltage is zero in a short circuit.

So, the current in the conductor will be zero unless we do not connect it with a load to complete the circuit.

In case of motors, the voltage is given to the conductor to rotate the coil, due to rotation of the coil some voltage is induced backwards to the conductor which is called back EMF.

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Π/4 = 1 - 1/3 + 1/5 - 1/7 + 1/9 ...
leva [86]

Answer: Pi= 4 - 4/3 + 4/5 - 4/7 + 4/9 ...

Explanation:

Is the same as the example,

If Π/4 = 1 - 1/3 + 1/5 - 1/7 + 1/9 ...

Then

(Π/4 )*4= 4*(1 - 1/3 + 1/5 - 1/7 + 1/9 ...)

Π =4 - 4/3 + 4/5 - 4/7 + 4/9 ...

The way to write this is

Sum(from n=0 to n=inf) of (-1)^n 4/(2n+1)

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6 0
3 years ago
The mass flow rate in a 4.0-m wide, 2.0-m deep channel is 4000 kg/s of water. If the velocity distribution in the channel is lin
IceJOKER [234]

Answer:

V = 0.5 m/s

Explanation:

given data:

width of channel =  4 m

depth of channel = 2 m

mass flow rate = 4000 kg/s = 4 m3/s

we know that mass flow rate is given as

\dot{m}=\rho AV

Putting all the value to get the velocity of the flow

\frac{\dot{m}}{\rho A} = V

V = \frac{4000}{1000*4*2}

V = 0.5 m/s

4 0
3 years ago
6) A deep underground cavern Contains 980 cuft
Elza [17]

Answer:

15625 moles of methane is present in this gas  deposit

Explanation:

As we know,

PV = nRT

P = Pressure = 230 psia = 1585.79 kPA

V = Volume = 980 cuft = 27750.5 Liters

n = number of moles

R = ideal gas constant = 8.315

T = Temperature = 150°F = 338.706 Kelvin

Substituting the given values, we get -

1585.79 kPA * 27750.5 Liters = n * 8.315 * 338.706 Kelvin

n = (1585.79*27750.5)/(8.315 * 338.706) = 15625

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Fire extinguishers need to be checked _______ to make sure they are working properly.
Zepler [3.9K]

Answer:

Answer D

Explanation:

They need to be checked monthly

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