The parts of a bar magnet at which the magnetic effect is strongest are called the
poles
neutral points
magnetic declinations
magnetic meridians
Correct answer is A
No explanation has been provided for this answer.
Using the diagram above, calculate the effective capacitance of the circuit
1.56μf
3.00μF
3.71μF
9.00μF
Correct answer is D
No explanation has been provided for this answer.
5V
10V
20V
60V
Correct answer is D
Voltage across 5Ω resistor = IR = 2 × 5 = 10V
Since voltage in a parallel connection is the same, voltage across 10Ω is also 10V
Current flowing across the 10Ω resistor
I = V/R = 10/10
Current I= 1A
Total current flowing = 2 + 1 = 3A
Voltage across 20Ω resistor = IR
= 3 × 20
= 60V
Thunder is usually heard some seconds after lightning is observed because
the human eye is more sensitive to light than the ear to sound
sound and light travel in different media
thunder occurs after lightning
light travels faster than sound
Correct answer is D
No explanation has been provided for this answer.
24.75cm
33.00cm
41.25cm
49.50cm
Correct answer is D
No explanation has been provided for this answer.