Asingle-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a spatially uniform magnetic field. during a 0.10-s time interval, the magnitude of the field increases uniformly from 200 to 300 mt. (a) determine the emf induced in the loop. (b) if the magnetic field is directed out of the page, what is the direction of the current induced in the loop

ε= 7.86 mV,  Current: Anti-clockwise

Explanation:

radius= 50 mm

dt= 0.10 s

Initial magnitude of magnetic field= B1 = 200 mT

Final magnitude of magnetic field = B2 = 300 mT

Ф= B. A= BA cosα

Ф1= B1 * A * cosα

Ф1=

Ф1= 0.00157 Wb

Ф2= B2 * A * cosα

Ф1=

Ф2=0.00236 Wb

dФ= Ф2 - Ф1

dФ= 0.00236 - 0.00157

dФ= 0.000786 Wb

ε= Ф

ε=0.001786/ 0.10

ε=0.00786 v = 7.86 mV

b)

According to lenz's law the induced emf always oppose the cause producing it.

Applied field is out of the paper so the current will flow in anti-clockwise direction to produce north pole pointing toward the paper.

i was thinking more like reflects green light, just not sure

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation: