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
lilavasa [31]
3 years ago
11

(a) What is the effective resistance of the diode when it was forward biased by 0.7 volts? ( Reff =V/I )

Physics
1 answer:
valkas [14]3 years ago
5 0

Answer:

a) Effective resistance when diode was forward biased = 0 Ω

b) Effective resistance when diode was reverse biased = ∞ Ω

Explanation:

Please refer attached characteristic curve for diode.

a) As per the characteristic curve, when the diode was forward biased by 0.7 Volt theoretically infinite current was flowing across the diode.

Hence effective resistance for the diode in forward biased =\frac{0.7}{ ∞ } = 0  Ω

b) As per the characteristic curve, when the diode was reversed biased by 0.7 Volt theoretically zero (0 amp) current was flowing across the diode.

Hence effective resistance for the diode in forward biased =\frac{0.7}{ 0 } = ∞ Ω

You might be interested in
A copper block rests 30.0 cm from the center of a steel turntable. The coefficient of static friction between the block and the
PIT_PIT [208]

Answer:

refer to the above attachment

3 0
2 years ago
What is the resultant of a pair of one pound forces at right angles to each other?
OleMash [197]

Answer:

F_R=\sqrt{2} \ pound.force

Explanation:

Given that there are two force of 1 pound each at right angles to each other.

The from the vector law of addition:

F_R=\sqrt{F_1^2+F_2^2}

where:

F_R= resultant force

F_1\ \&\ F_2 be the two of the forces to be added.

F_R=\sqrt{1^2+1^2}

F_R=\sqrt{2} \ pound.force

8 0
4 years ago
Which of the following modifications to a solenoid would be most likely to decrease the strength of its magnetic field?
Goryan [66]

By reading the fine details of the question, carefully and analytically, I have determined that there's no list of modifications to choose from.

The strength of the magnetic field of a solenoid depends on the electric current in its coil windings, the number of wire turns in its coil windings, and the material in its core.

In order to <em>DE</em>crease the strength of its magnetic field, any one or more of these steps could do the job:

-- DEcrease the electric current in its coil windings.  This can be accomplished by decreasing the voltage of the power source that energizes the coil, and/or increasing the resistance of the wire in the coil.

-- DEcrease the number of wire turns in the coil.

-- If the solenoid has anything in its core, change the core to something with a lower magnetic 'permeability'.  An Iron core will produce the greatest magnetic field strength.  Air, vacuum, or NO core will produce the lowest magnetic field strength.

8 0
3 years ago
What are the horizontal and vertical velocities of a stunt bike that leaves a ramp at 100 km/hr and at an angle of 35 degrees?
Alex787 [66]

Horizontal velocity: 81.9 km/h

Vertical velocity: 57.4 km/h

Explanation:

We can solve this problem by resolving the velocity vector into its component along the horizontal and vertical direction.

The horizontal velocity of the stunt bike is given by:

v_x = v cos \theta

where

v = 100 km/h is the magnitude of the velocity

\theta=35^{\circ} is the angle of projection

Substituting, we find

v_x = (100)(cos 35^{\circ})=81.9 km/h

The vertical velocity instead is given by

v_y = v sin \theta

where

v=100 km/h

\theta=35^{\circ}

Substituting,

v_y = (100)(sin 35^{\circ})=57.4 km/h

Learn more about vector components:

brainly.com/question/2678571

#LearnwithBrainly

4 0
3 years ago
In the late 19th century, great interest was directed toward the study of electrical discharges in gases and the nature of so-ca
svlad2 [7]

Answer:

a) He found the same value of q/m for different cathode materials.

b)      y = - \frac{e}{m}\  \frac{E_o v_o^2 }{2d^2} ,  c)  v = \frac{E_o}{B_o}

Explanation:

In Thomson's experiments he was able to measure the deflection of the light beam under the effect of the magnetic field and with these results find the e / m relationship, which in all cases is the same, therefore the most important conclusion is that the value e E / m is constant for all materials.

b) In the part of the plates the electrons are accelerated by the electric field,

              F = ma

             - e E = m a

              a = - (e/m)  E₀

               

the distance traveled is          

X axis

          x = v₀ t

the separation of the plates is x = d

          t = vo / d

               

Y axis

          y = v_{oy} t + ½ to t²

          y = ½ a t²

          y = - \frac{e}{m}\  \frac{E_o v_o^2 }{2d^2}

           

c) In this case there is a magnetic field B₀ and the electrons have no deflection

         F = - e E + e v x B

       

if there is no deviation F = 0

         e E = e v B

         v = \frac{E_o}{B_o}

5 0
3 years ago
Other questions:
  • Mars, which has a radius of 3.4 × 106 m and a mass of 6.4 × 1023 kg, orbits the Sun, which has a mass of 2.0 × 1030 kg at a dist
    13·2 answers
  • When did you notice a greater elevation of blood pressure and pulse?
    9·1 answer
  • The number of neutrons is equal to the atomic number<br> O A True<br> B. False
    9·2 answers
  • What happens to the ball's velocity while the ball is traveling upwards?
    14·1 answer
  • Two point charges are separated by a certain distance. How does the strength of the electric field produced by the first charge,
    12·1 answer
  • A neighbor's child wants to go to a neighborhood carnival to experience the wild rides. The neighbor is worried about safety as
    6·2 answers
  • A car can be braked to a stop from the autobahn-like speed of 206 km/h in 190 m. Assuming the acceleration is constant, find its
    11·1 answer
  • Given 1 inch ≡ 2.54 cm and 1 foot ≡
    14·1 answer
  • An air-filled pipe is found to have successive harmonics at 700 Hz , 900 Hz , and 1100 Hz . It is unknown whether harmonics belo
    13·1 answer
  • Which of the following is a characteristic of a base?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!