A straight conductor of fixed length / is moving at 45 degrees to a uniform magnetic field of strength B with constant speed v. Calculate v, if B=4.2 T, I=1.2 m and electromotive force e =5 V. Give your answer in SI units. Answer: Choose.. +

A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 3.1 x 104 m/s. The distance between the electron and the wire is 8 cm. Calculate the magnitude of the magnetic force on the electron.(Give your answer in newtons but don't include the units.)

A wire carries I1=7.96 A current along the x-axis, and another wire carries an I2=1.15 A current along the y-axis, as shown in the figure below. What is the magnitude of magnetic field at point at x = 0.400m , y = 0.300m? The magnitude of the net magnetic field at point P is?(Note : mu T=10^ -6 T) .

Two long straight current-carrying wires are lined up parallel to one another at a distance dd. Currents of 4 A and 2 A flow through the wires, both in the same direction generating the field of 8.7x10-6 T at a midpoint between them. Calculate the distance between the wires. Give your answer in SI units. Use μ0=4π×10−7μ0=4π×10−7 Hm-1.

A wire carries current 45.1 A into the junction as shown above. What is the magnetic field (in T) at d = 64.7 cm?

A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 3.1 x 104 m/s. The distance between the electron and the wire is 8 cm. Calculate the magnitude of the magnetic force on the electron.(Give your answer in newtons but don't include the units.)

Select the correct expression for the magnitude of electromotive force (e.m.f) of a straight conductor of length I moving with the velocity v perpendicular to a magnetic field B. Select one: a. € = Bu/I b. € = VBul C. E = Bul d. e = Bul?

9 x 1021 electrons pass through the cross-section of a wire with a cross-sectional area of 9 mm2 in 1.4 minutes. What is the magnitude of the magnetic field formed at a distance of 36 cm from this wire? (Express your answer in the unit of µT)

A strip of copper 220 um thick and 4.70 mm wide is placed in a uniform magnetic field of magnitude B = 0.96 T, that is perpendicular to the strip. A currenti- 25 Ais then sent through the strip such that a Hall potential difference Vappears across the width. Calculate V. (The number of charge carriers per unit volume for copper is 8.47 x 102 electrons/m) Number Units

A long straight wire carries a 1.5 A current. An electron moves parallel to the wire at speed 1.3 x 104 m/s. The distance between the electron and the wire is 7 cm. Calculate the magnitude of the magnetic force on the electron.(Give your answer in newtons. Don't round your answer.)