a magnetic field of 1 T exists. The electric current in the 9 Ω resistance is
Sahay Sir > Question Answers > a magnetic field of 1 T exists. The electric current in the 9 Ω resistance is
A plane rectangular loop is placed in a magnetic field. The emf induced in the loop due to this field is ε1 whose maximum value is εim. The loop was pulled out of the magnetic field at a variable velocity. Assume that B is uniform and constant ε1 is plotted against t as shown in the graph. Which of the following are/is correct statement(s):
21
Oct
A plane rectangular loop is placed in a magnetic field. The emf induced in the loop due to this field is ε1 whose maximum value is εim. The loop was pulled out of the magnetic field at a variable velocity. Assume that B is uniform and constant ε1 is plotted against t as shown in [...]
A highly conducting ring of radius R is perpendicular to and concentric with the axis of a long solenoid as shown in Fig. 3.182. The ring has a narrow gap of width δ in its circumference. The cross-sectional area of the solenoid is a. The solenoid has a unifoem unitial field of magnitude B(t)=B0+βt, where β>0. Assuming that no charge can flow across the gap, the face (s) accumulating an excess of positive charge is /are
21
Oct
A highly conducting ring of radius R is perpendicular to and concentric with the axis of a long solenoid as shown in Fig. 3.182. The ring has a narrow gap of width δ in its circumference. The cross-sectional area of the solenoid is a. The solenoid has a unifoem unitial field of magnitude B(t)=B0+βt, where [...]
A uniform circular loop of radius a and resistance R palced perpendicular to a uniform magnetic field B. One half of the loop is rotated about the diameter with angular velocity ω as shown in Fig. Then, the current in the loop is
21
Oct
A uniform circular loop of radius a and resistance R palced perpendicular to a uniform magnetic field B. One half of the loop is rotated about the diameter with angular velocity ω as shown in Fig. Then, the current in the loop is a magnetic field of 1 T exists. The electric current in the [...]
A conducting wire of length l and mass m can slide without friction on two parallel rails and is connected to capacitance C. The whole system lies in a magnetic field B and a constant force F is applied to the rod . Then
21
Oct
A conducting wire of length l and mass m can slide without friction on two parallel rails and is connected to capacitance C. The whole system lies in a magnetic field B and a constant force F is applied to the rod . Then a magnetic field of 1 T exists. The electric current in [...]
In figure, R is a fixed conducting ring of negligible resistance and radius a. It is hinged at the center of the ring and rotated about this point in clockwise direction with a uniform angular velocity ω. There is a uniform magnetic field of strength B pointing inward and r is a stationary resistance. Then
21
Oct
In figure, R is a fixed conducting ring of negligible resistance and radius a. It is hinged at the center of the ring and rotated about this point in clockwise direction with a uniform angular velocity ω. There is a uniform magnetic field of strength B pointing inward and r is a stationary resistance. Then [...]
In figure, the wires P 1 Q 1 and P 2 Q 2 are made to slide on the rails with same speed of 5 cm /s . In this region, a magnetic field of 1 T exists. The electric current in the 9 Ω resistance is
21
Oct
In figure, the wires P 1 Q 1 and P 2 Q 2 are made to slide on the rails with same speed of 5 cm /s . In this region, a magnetic field of 1 T exists. The electric current in the 9 Ω resistance is a magnetic field of 1 T exists. [...]