Q1. An electron is accelerated through an electric potential of 229 V, then enters a 22 Gauss magnetic field in a direction at a right angle to the magnetic field vector. Find the radius (in cm) of the subsequent circular path for this electron. Express the answer (without the unit) with two decimal places.
Q2. Mark all that are correct:
- Gauss = 10000 Weber
- Tesla = 104 Gauss
- Gauss = 10-4 Tesla
- Tesla = 10-4 N
- Gauss = 104 H
- H = 100 Teslas
- N= 1000 Gauss
-N = 104 Tesla
-H = 10 Teslas
-H = 10-4 Gauss
Q3. Two charges Q1 = 42 nC and Q2 = 45 nC are in rest on the horizontal axis. The distance between the charges is 0.85 m. What is the value of the magnetic field at the point between the charges which is 0.16 m away from charge Q1? Express the answer as a whole number.
Q4. Find the magnetic field strength (in Gauss) for a current of 1.8 A in the Helmholtz coils with 141 turn, assuming a coil radius of 10 cm. Express the answer with one decimal place.