Switching of a lamp in house produces noise in the radio. This is because switching operation produces
A. arcs across separating contacts
B. mechanical noise of high intensity
C. both mechanical noise and arc between contacts
D. none of the above
Answer:A
Switching of a lamp in house produces noise in the radio. This is because switching operation produces
A. arcs across separating contacts B. mechanical noise of high intensity C. both mechanical noise and arc between contacts D. none of the above