A current of 0.5 A flows through a resistor when connecte...
A current of 0.5 A flows through a resistor when connected to a 40 V battery. How much energy is dispatched in 2 minutes?
2400 J
9600 J
1500 J
1200 J
Correct answer is A
Energy = power x time
Power = voltage x current.
Energy = voltage x current x time
Energy = 40 x 0.5 x 60 x 2
→ 2,400j
On which of the following does the operation of a moving coil ammeter depend? i. Electromagnetic ...
The magnetic force on a charged particle moving with velocity v is...
Which of the following substances is not an insulator? ...
Which of the following factors does not affect the capacitance of a parallel plate capacitor? ...
Which of the following quantities has the same unit as the watt? ...
The symbol −10X used to represent which of the particles?...
The p-n junction diodes can act as rectifiers because they ...
The equilibrium position of objects in any field corresponds to situation of ...