A uniform magnetic field is perpendicular to the plane of a circular loop of diameter 10 cm formed from wire of diameter 2.5 mm and resistivity 1.69 * 10-8 ohmm. At what rate must the magnitude of change to induce a 10 A current in the loop?

A Current of 11 A flows in a coil Has 36 turns and is 25 cm long on each side. The magnetic field is uniform and has a strength of .75 T. If the coil is angled at 37 degrees, what is the torque on the coil, assuming it can pivot on an appropriate axis?

Q.A) A constantan wire of length 12 m and having a cross sectional area 1.4x10-4 m2 is converted into 3-turn circular loop. It is connected to a voltage of 0.160 V. If the loop is placed in a uniform magnetic field of magnitude 0.66 T at an angle of 64˚, then calculate torque in the circular loop? (The resistivity (ρ) of constantan= 49 x10 -8 Ω.m.)

The small currents in axons corresponding to nerve impulses produce measurable magneticfields. A typical axion carries a peak current of 0. 040 μA. What is the strength of the field at a distanceof 0.9 mm?

A loop of highly conducting wire is placed in a magnetic field that is increasing out of the page (through the loop) at a rate of 1.80 T/s. If the loop has an area of 0.400m^2, calculate the current flowing in Amps through the 5.00 ohm resistor.

It is desired to construct a solenoid that will have a resistance of 5.60 N (at 20°C) and produce a magnetic field of 4.00 X 10¬2T at its center when it carries a current of 3.10 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 × 10-8 0· m.) (a) the number of turns of wire needed to build the solenoid 1029 v turns (b) the length the solenoid should have X cm 1.034*10**7

It is desired to construct a solenoid that will have a resistance of 4.15 2 (at 20°C) and produce a magnetic field of 4.00 x 10-2 T at its center when it carries a current of 5.00 A. The solenoid is to be constructed from copper wire having a diameter of 0.500 mm. If the radius of the solenoid is to be 1.00 cm, determine the following. (The resistivity of copper at 20°C is 1.7 x 10-8 0 • m.) (a) the number of turns of wire needed to build the solenoid turns (b) the length the solenoid should have cm

A 2.40 m segment of wire supplying current to the motor of a submerged submarine carries 1500 A and feels a 2N repulsive force from a parallel wire 3.50cm away. What is the direction and magnitude (in A) of the current in the other wire?