Connect a battery to a solenoid A cylindrical solenoid 43 cm long with a radius of 4 mm has 200 tightly-wound turns of wire uniformly distributed along its length (see the figure). Around the middle of the solenoid is a two-turn rectangular loop 3 cm by 2 cm made of resistive wire having a resistance of 160 ohms. One microsecond after connecting the loose wire to the battery to form a series circuit with the battery and a 20 2 resistor, what is the magnitude of the current in the rectangular loop and its direction (clockwise or counter-clockwise in the diagram)? (The battery has an emf of 9 V.)

Q: As shown below, a wire loop (that is immersed in a 0.43 T B-field) grows from a radius of 4.2 cm to…

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Q: Three long, parallel, conducting wires lie parallel to the y-axis in the xy plane (labeled 1, 2 and…

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Q: The energy stored in a solenoid inductor is 28.4 J. The solenoid is .876 m long and has a radius of…

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Q: 5. DETAILS MYΝOTES ASK YOUR TEACHER (a) A physicist is constructing a solenoid. She has a roll of…

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Q: First graph The I vs t graph shown below is for an LR circuit with a battery. 1 (A) 4 3. 2. 1. 6 12…

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Q: A solenoid is 0.5 m long, has a diameter of 20 cm and is wound with 1200 turns of wire. Calculate…

A: Length(l)=0.5m Diameterd=20cm  ⇒r=10 cm =0.1m n=1200

Q: Calculate the peak voltage of a generator that rotates its 200 turn, 0.100 m diameter coil at 3600…

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Q: Here you see the circuit board that I passed around in class one day, the control board from my…

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Q: An 820 turn wire coil of resistance 28.0 Q is placed around a 12500 turn solenoid, 7.60 cm long, as…

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Q: Which is the Kirchhoff Voltage equation for the left hand loop in the circuit 12 30 - 118V 30 27V 1…

A: Kirchhoff's Voltage Law says that work done around a close loop is zero by the conservative field.

Q: Connect a battery to a solenoid A cylindrical solenoid 39 cm long with a radius of 7 mm has 300…

A: The magnitude of the current in the rectangular loop is 2.45 x 10-4 A

Q: Three resistors, R, 2R, and 3R, where R = 18.8 , are wired to an inductor, L = 0.255 H, an emf, ε =…

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Q: In the figure below, a 13.0 V ideal battery, a 23.302 resistor, and an inductor are connected by a…

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Q: A 14.0 V battery is connected in series with a resistor and an inductor. The circuit has a time…

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Q: a) Suppose the current is changing with time according to I = a + bt whe constants. Determine the…

A: The change in magnetic flux linked with a closed circuit with time will always produce an electric…

Q: A solenoid 46.6 cm long is wound with 175 turns of wire. The diameter of the solenoid is 4.17 cm.…

A: Given: length of solenoid l=46.6 cm =0.466 m number of turns N=175 diameter of wire d=4.17 cm =…

Q: In the circuit shown, the switch S is closed at time t=0. a) Find the current in the 100 2 resistor…

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Q: I need help answering this. Thank you! There is a solenoid with an inductance of 0.285 mH, a length…

A: Solution -

Q: circuit is comprised of two adjacent square loops that share a side such that the right side of the…

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Q: 7. If the current flowing through the wires is given as i(t) = I, sin(@t), find an expression for…

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Q: The induced e.mf in a circuit always oppose the decay or growth of magnetic flux. This statement is…

A: Required : Law related to the statement.

Q: An inductor in the form of a solenoid contains 430 turns and is 17.4 cm in length. A uniform rate of…

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Q: The switch is opened after being closed for a long time. (a) What is the current through the…

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Q: The closed circuit shown below (same as #1) has a resistor of 5 Ω, an inductor of 6 mH, and a…

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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.