What is the least magnetic field needed to lift the wire

Reference no: EM1391258

Q. A wire having a mass per unit length of 0.970 g/cm carries a 1 A current horizontal to the surface of the earth. What is the least magnetic field needed to lift the wire?

Q. Two narrow slits separated by 0.51 mm are illuminated by monochromatic light of wavelength 670 nm. How many bright fringes can be seen on a screen 1.3 cm wide placed 1.1 m in front of the slits?

Reference no: EM1391258

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