1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
-BARSIC- [3]
1 year ago
6

The rotor in a certain electric motor is a flat, rectangular coil with 80 turns of wire and dimensions 2.50 cm by 4.00 cm . The

rotor rotates in a uniform magnetic field of 0.800 T . When the plane of the rotor is perpendicular to the direction of the magnetic field, the rotor carries a current of 10.0 mA . In this orientation, the magnetic moment of the rotor is directed opposite the magnetic field. The rotor then turns through one-half revolution. This process is repeated to cause the rotor to turn steadily at an angular speed of 3.60×10³ rev/min. (b) Find the peak power output of the motor.
Physics
1 answer:
wel1 year ago
7 0

The Peak power output of the motor is 0.452 Watt

To find the peak power output, the given values are,

No .of turns of the wire = 80

Dimensions is given as, 2.50 cm by 4.00 cm

Magnetic field = 0.800 T.

current = 10 mA.

Angular speed = 3.60 ×10³ rev/min

<h3>What is Peak power output?</h3>
  • Peak power output can be also known as Peak work rate.
  • If the output was greatest or the work production was very high in the given amount of time then it is known as Peak power output.
  • This peak power is depends on the force, distance and time.

The formula for peak power output,

                     Pout = τ * ω

where,

Pout - output power  watts (W),

τ - torque   Newton meters (Nm),

ω - angular speed  radians per second (rad/s).

Calculating angular speed as here rotational speed of the motor in rpm is given:

                      ω = rpm * 2π / 60

where,

ω – angular speed, radians per second (rad/s),

rpm – rotational speed in revolutions per minute,

π – mathematical constant pi (3.14),

60 – number of seconds in a minute.

So, the formula is,

Peak power output = τ *rpm * 2π / 60

τ = NIAB sinθ Nm

  = 80×10×10⁻³×0.0250×0.040×0.800× Sin 90°

  = 2 × 6.4 × 10 ⁻⁴

  = 1.2 × 10⁻⁴ Nm.

Peak power output = 1.2 × 10⁻⁴ ×3.60×10³ × 2π / 60

= 0.452 Watt

Thus, the peak power output is 0.452 Watt.

Learn more about Peak power output,

brainly.com/question/13937812

#SPJ4

You might be interested in
7. A 50 kg pole vaulter running at 10 m/s vaults over the bar. Her speed when she is over the bar is 1.0 m/s. Neglect air resist
luda_lava [24]

Answer:  5.05 m

Explanation:

4 0
3 years ago
Read 2 more answers
A mole of ideal gas expands at T=27 °C. The pressure changes from 20 atm to 1 atm. What’s the work that the gas has done and wha
Airida [17]

Answer:

  • The work made by the gas is 7475.69 joules
  • The heat absorbed is 7475.69 joules

Explanation:

<h3>Work</h3>

We know that the differential work made by the gas  its defined as:

dW =  P \ dv

We can solve this by integration:

\Delta W = \int\limits_{s_1}^{s_2}\,dW = \int\limits_{v_1}^{v_2} P \ dv

but, first, we need to find the dependence of Pressure with Volume. For this, we can use the ideal gas law

P \ V = \ n \ R \ T

P = \frac{\ n \ R \ T}{V}

This give us

\int\limits_{v_1}^{v_2} P \ dv = \int\limits_{v_1}^{v_2} \frac{\ n \ R \ T}{V} \ dv

As n, R and T are constants

\int\limits_{v_1}^{v_2} P \ dv = \ n \ R \ T \int\limits_{v_1}^{v_2} \frac{1}{V} \ dv

\Delta W= \ n \ R \ T  \left [ ln (V) \right ]^{v_2}_{v_1}

\Delta W = \ n \ R \ T  ( ln (v_2) - ln (v_1 )

\Delta W = \ n \ R \ T  ( ln (v_2) - ln (v_1 )

\Delta W = \ n \ R \ T  ln (\frac{v_2}{v_1})

But the volume is:

V = \frac{\ n \ R \ T}{P}

\Delta W = \ n \ R \ T  ln(\frac{\frac{\ n \ R \ T}{P_2}}{\frac{\ n \ R \ T}{P_1}} )

\Delta W = \ n \ R \ T  ln(\frac{P_1}{P_2})

Now, lets use the value from the problem.

The temperature its:

T = 27 \° C = 300.15 \ K

The ideal gas constant:

R = 8.314 \frac{m^3 \ Pa}{K \ mol}

So:

\Delta W = \ 1 mol \ 8.314 \frac{m^3 \ Pa}{K \ mol} \ 300.15 \ K  ln (\frac{20 atm}{1 atm})

\Delta W = 7475.69 joules

<h3>Heat</h3>

We know that, for an ideal gas, the energy is:

E= c_v n R T

where c_v its the internal energy of the gas. As the temperature its constant, we know that the gas must have the energy is constant.

By the first law of thermodynamics, we know

\Delta E = \Delta Q - \Delta W

where \Delta W is the Work made by the gas (please, be careful with this sign convention, its not always the same.)

So:

\Delta E = 0

\Delta Q = \Delta W

7 0
2 years ago
8x = -6. What does x equal?
allsm [11]

Answer:

x= -3/4

Explanation:

4 0
2 years ago
Read 2 more answers
If you decrease the distance between successive crests of a wave, this changes
AlexFokin [52]
<span>The _______ is the the distance between two crests or two troughs on a transverse wave. It is also the distance between compressions or the distance between rarefactions on a longitudinal wave.</span>
3 0
2 years ago
What is the wavelength of sound wave in air that has a temperature of 24.6°C that has a frequency of 440.8 Hz?
nignag [31]
The answer is c have a good day
3 0
3 years ago
Other questions:
  • Which of the following concepts underlies all the others: electron affinity, ionization energy, effective nuclear charge, atomic
    9·2 answers
  • A person running has a momentum of 720 kg m/s and is traveling at a velocity of 5 m/s. What is his mass?
    15·1 answer
  • A space probe is directly between two moons of a planet. If it is twice as far from moon A as it is from moon B, but the net for
    9·1 answer
  • A 160.-kilogram space vehicle is traveling along a
    7·1 answer
  • The temperature of a body of water influences _____
    12·2 answers
  • In the simulation above, as the projectile travels upward, how does the vertical velocity change? Vertical velocity is zero. Ver
    10·2 answers
  • A 500-kg, light-weight helicopter ascends from the ground with an acceleration of 2.00 m/s2. over a 5.00-s interval, what is (a)
    15·1 answer
  • Protons are______<br> charged particles.
    8·2 answers
  • The base ( foundation ) of building is made wider. Why ?​
    10·1 answer
  • Acceleration is always measured in meters per second squared. Why is acceleration not measured in meters per second like speed?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!