A voltage of 0.35 V is induced across a coil when the current through it changes uniformly from 0.1 to 0.55 A in 0.35 s. What is the self-inductance of the coil? Hint The self-inductance of the coil is Н.

Q: Refer to FIGURE A Determine the voltage across C2. A. 4.58 V В. 6.29 V С. 5.71 V D. 12.0 V

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Q: Two electrolytic capacitors are connected in parallel across a 12-volt supply. What is the total…

A: Given data:  Two capacitors are connected in parallel C1 = 10 μF and C2 = 10 μF Battery voltage (V)…

Q: 5.00 moles of air (consider the air to be a diatomic gas) at 20.0°C are compressed to half the…

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Q: A black belt flyweight performs a sudden blow and chops a cement block with his bare hand. The…

A: Blowing with wall is inelastic collision. After Blowing hand to wall it comes to rest. For inelastic…

Q: An object in equilibrium must not have A a net torque acting on it B none of the above. C a net…

A: For the object to be in translational equilibrium net force acting on it must be zero.  When net…

Q: Young's modulus of iron rod is 21 x 1010 N/m². A force of 7.0 x 105 N is applied to a 1.5-m length…

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Q: Which of the following statement is false?   An object is said to be in equilibrium if and only if…

A: An object is said to be in equilibrium if net force (vector sum of all forces) acting on it is zero…

Q: A 0.20 kg billiard ball moving to the right at 1.4 m/s has a head-on elastic collision with another…

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Q: Select a statement/statements that is/are always TRUE I. Distance is independent of the path and a…

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Q: 9. What is the maximum speed at which a car can round a curve of 25m radius on a level road if the…

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Q: Which of the following statements is true?   Work is a Scalar Quantity   Work is positive when the…

A: 1) solution - Yes work is scalar quantity We know that, Work (W)= F.s Where F and s are the vector…

Q: (Refer to Figure 4) Three resistors are connected in series and are being supplied by a 12volt…

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Q: A green toy car with 0.025-kg mass moves to the right at 0.30 m/s and has a head-on, elastic…

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Q: Which of the following current-carrying conductors has a magnetic field resembling a bar magnet?…

A: Bar magnet has two poles north pole and south pole  and behave as magnetic dipole.

Q: Momentum may be expressed in: A kg/m B) gram's c) N's D N/s

A: Momentum of a body is given by p = mv, where m = the mass of the body v = velocity of the body

Q: To separate a 0.16 C charge from another charge, 15 J of work is done. What is the electric…

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Q: What is the angular speed in rad/s of the second hand of a watch? A 1.7 x 10-3 rad/s B 0.10 rad/s c)…

A: Required:  The angular speed in rad/s of the second hand of the watch

Q: What is the total charge of the entire circuit if it is connected to a 12-V battery? A. 83.76 µC B.…

A: First, we find the total capacitance in the circuit. Then we calculate the total charge in the…

Q: The nucleus of an atom emits a high energy electromagnetic wave. This nucleus has probably changed…

A: When a nucleus emmits a radiation of high energy electromagnetic wave then then it transformers to a…

Q: James Yap's wooden block floats in fresh water with two thirds of its volume submerged. In alcohol,…

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Q: A 0.20 kg billiard ball moving to the right at 1.4 m/s has a head-on elastic collision with another…

A: Given Mass of the each ball is m=0.20 kg Velocity of the first ball before collision is v1=1.4 m/s…

Q: A converging lens (f = 12 cm) is located 30cm to the left of a diverging lens (f = -6 cm). A postage…

A: Given, Converging focal length=12cm Object distance=36cm

Q: The Earth takes slightly less than one day to complete one rotation about the axis passing through…

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Q: A constriction in a pipe reduces its diameter from 4.0 cm to 2.0 cm. Where the pipe is narrow the…

A: Initial diameter = 4cm Final diameter = 2cm Speed of water at narrow end =8m/s

Q: EMF = Vo = 6 volts. and C = 5 μF  Calculate the theoretical value of the capacitor’s voltage during…

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Q: Three resistors are connected in series and are being supplied by a 12volt battery. Compute for the…

A: Given Data, Supplied Voltage (V)=12 V Resistances are R1= 10 ΩR2= 5 ΩR3= 5 Ω

Q: A uniform rod is rotating around one of its ends with angular velocity w =1 d and angular…

A: Given data:  Angular acceleration (α) = 17 rad/s2 Linear acceleration (a) = 3.75 m/s2 Required: The…

Q: Match the given description to the correct classification of magnetic materials. Materials that do…

A: Three types of magnetic materials are Ferromagnetic materials Paramagnetic materials Diamagnetic…

Q: Three capacitors are connected as shown from Figure A. Compute for the total charge of the entire…

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Q: An object weighing 500kg is to be pulled by a man by exerting a force P. Force P is inclined at an…

A: We need to calculate the force P, the velocity and distance travelled in 10 seconds of motion.

Q: Natalia throws a 0.5 kilogram object at a wall. The object hits the wall perpendicularly with a…

A: Given data:  Mass (m) = 0.5 kg Initial velocity = 3 m/s, towards wall Final velocity = 1.5 m/s, away…

Q: frgme I Suppose, there is an infinite current carrying wire lying along the z-axis as shown in the…

A: The magnetic field at point P1 is            -1.53 x 10-9 T î or -1.53 nTî

Q: b) The management has stated that the quantity for ONE bottle should be around 1.27 litres and has…

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Q: C - 10uF c, - 22ur 12V FIGURE 2 Refer to the figure 2. Two electrolytic capacitors are connected in…

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Q: Young's modulus of iron rod is 21 × 1010 N/m². A force of 7.0 x 105 N is applied to a 1.5-m length…

A: Force applied, F = 7x105 N Length of iron rod, l = 1.5 m Cross sectional area of iron, a = 0.25 m2…

Q: The following statements are TRUE about Newton's Second Law of Motion EXCEPT: A) Mass and…

A: (C) is the correct option.  Newton's second low of motion says force is equal to the change in…

Q: Ivana Alawi placed a 50.0 g mass at the 20 cm mark in meterstick as shown in the figure. what is the…

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Q: what is the force experienced by an electron placed in a 4000 N/C electric field? (qe- = 1.602 x…

A: Given an electron placed in a 4000 N/C. We have to find what is the force experienced by an electron…

Q: A green toy car with 0.025-kg mass moves to the right at 0.30 m/s and has a head-on, elastic…

A: mass of green car (m1) = 0.025 kg mass of black car (m2) = 0.045 kg initial velocity of green car…

Q: . Determine the currents I, and la 2 A 7A I. ЗА 4 A

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Q: Which of the following statement/s is/are TRUE? A In equilibrium, the net torque is maximum. B In…

A: Let's check each option one by one  A. In equilibrium  net torque is maximum  Incorrect  statement…

Q: Quasars are faint, distant sources of radio waves. (Quasar is short for "quasi-stellar source." They…

A: Solution

Q: A cue ball collides with a stationary identical ball in an perfectly elastic head-on collision.…

A: Given data as per question u2   =  0 u1  =   velocity of cue ball the cue ball comes to rest after…

Q: A flywheel is brought from rest up to a speed of 1 500 rpm in one minute. What is the average…

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Q: Slip. Consider the figure below. If µ, = 1/(2 + v3) between the surfaces, what is the smallest…

A: The forces are shown below

Q: A black belt flyweight performs a sudden blow and chops a cement block with his bare hand.   none…

A: Given, A black belt flyweight performs a sudden blow and chops a cement block with his bare hand.…

Q: According to the First Law of Thermodynamics, the total amount of energy in the

A: Definitions: First law of thermodynamics “ conservation of energy states that the total amount of…

Q: Natalia throws a 0.5 kilogram object at a wall. The object hits the wall perpendicularly with a…

A: mass of object (m) = 0.5 kg Initial velocity of the object (u) = -3 msFinal velocity of the object…

Q: PROBLEM 2 The elements of a floor jack are shown in the figure. If the hydraulic cylinder AB is…

A: Force on AB is 37kN

Q: James Yap's wooden block floats in fresh water with two thirds of its volume submerged. In alcohol,…

A: Given James Yap's wooden block floats in fresh water with two thirds  2 / 3 of its volume submerged…

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.