A 5.0-cm-diameter coil has 20 turns and a resistance of 0.50Ω. A magnetic field perpendicular to the coil is B=0.020t+0.010t2, where B is in tesla and t is in seconds.
Find an expression for the induced current I(t) as a function of time.
Express your answer in terms of the variable t.
Evaluate I at t=10s.
Express your answer using two significant figures.
A 5.0-cm-diameter coil has 20 turns and a resistance of 0.50Ω. A magnetic field perpendicular to...
A fixed 15.2-cm-diameter wire coil is perpendicular to a magnetic field 0.58 T pointing up. In 0.20 s , the field is changed to 0.29 T pointing down. What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units.
A fixed 17.1-cm-diameter wire coil is perpendicular to a magnetic field 0.48 T pointing up. In 0.14 s, the field is changed to 0.34 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. 0 på ? E = Value V
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. НА ? E = Value Units Submit Request Answer
A fixed 12.1-cm-diameter wire coil is perpendicular to a magnetic field 0.55 T pointing up. In 0.26 s, the field is changed to 0.20 T pointing down. Part A What is the average induced emf in the coil? Express your answer to two significant figures and include the appropriate units. HÅ ? FR E = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining
A circular coil that has 120 turns and a radius of 10.0 cm lies in a magnetic field that has a magnitude of 0.0650 T directed perpendicular to the coil. What is the magnetic flux through the coil? (Express your answer to three significant figures.) The magnetic field through the coil is increased steadily to 0.100 T over a time interval of 0.300 s. What is the magnitude of the emf induced in the coil during the time interval? (Express...
A coil is in a perpendicular magnetic field that is described by the expression B = 0.0500t + 0.0400t2. The 7.70 cm diameter coil has 45 turns and a resistance of 1.13 2. What is the induced current at time t = 3.00 s? Magnitude: . . B Crank In the figure provided, a magnet creates a magnetic field of strength 3.63 T. A hand crank generator consists of a semi circle with a radius of r = 5.50 cm...
A coil 5.0 cm in radius, containing 300 turns, is placed in a uniform magnetic field that varies with time according to B(t)=0.5+0.5/t+0.5t Tesla. The coil is connected to a 200 Ω resistor and its n ̂ unit vector is collinear with B. A) What is the magnetic flux in Wb through the coil at t = 2 sec? B) What is the magnitude of the induced emf in V in the coil? C) What is the current in A...
A coil with 150 turns, a radius of 5.0 cm. and a resistance of 12 ohm surrounds a solenoid with 240 turns/cm and a radius of 4.6 cm; see the figure. The current in the solenoid changes at a constant rate from 0 to 1.5 A in 0.12 s. (Figure 1) Calculate the magnitude and direction of the induced current in the 150-turn coil. Express your answer using two significant figures. I = A The current flows from left to...
A 24.0-cm diameter coil consists of 45 turns of circular copper wire 3.0 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 7.85×10−3 T/s .The resistivity of copper is 1.68×10−8Ω⋅m. a) Determine the current in the loop. (Express your answer to two significant figures and include the appropriate units.) b) Determine the rate at which thermal energy is produced.(Express your answer to two significant figures and include the appropriate units)
A 24.0-cm diameter coil consists of 45 turns of circular copper wire 3.0 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 7.85×10−3 T/s . The resistivity of copper is 1.68×10−8Ω⋅m. Determine the current in the loop. (Express your answer to two significant figures and include the appropriate units.) Determine the rate at which thermal energy is produced. (Express your answer to two significant figures and include the appropriate units.)