Physics Test - ...

Three similar light bulbs are connected to a constant voltage d.c. supply as shown in Fig. Each bulb operates at normal brightness and the ammeter (of negligible resistance) registers a steady current.

The filament of one of the bulbs breaks. What happens to the ammeter reading and to the brightness of the remaining bulbs?

Ammeter reading _______ & Bulb brightness _______

In a meter bridge experiment a balance point is obtained at a distance of 60 cm from the left end when unknown resistance R is in a left gap and 8 ohms resistor is connected in the right gap. When the position of R and 8 ohm resistor is interchanged the balance point will be at distance of

V-I graph of which material shows the straight line

The following fig. shows I-V graph for a given metallic wire at two temperatures T₁and T₂.Then,

In two current carrying conductors parallel currents________, anti parallel currents_________ .​

No force is exerted by a magnetic field on a stationary –

Along an infinitely long conductor carrying a current of 8 A we keep another conductor of length 5 m carrying a current of 3 A. Both the conductors are 10 cm apart. Find the force on small conductor.​

We use _________ to find the direction of force on a current-carrying conductor placed in a magnetic field.

What is the value of power factor in RLC circuit

In a series LCR what will be phase difference between voltage drop across inductor and capacitor