Physics-
General
Easy
Question
Three bulbs B1, B2 and B3 are connected to the mains as shown in figure. How will the incandescence of the bulb B1 be affected, if one of the bulbs B2 or B3 is disconnected from the circuit?
- no change in the incandescence
- bulb will become brighter
- bulb will become less brighter
- The bulb B1 may become brighter or dimmer depending upon
The correct answer is: bulb will become less brighter
the bulb which is disconnected
Related Questions to study
physics-
In a metre bridge, the gaps are closed by two resistances P and Q the balance point is obtained at 40 cm. When Q is shunted by a resistance of 10, the balance point shifts to 50 cm. The values of P and Q are
In a metre bridge, the gaps are closed by two resistances P and Q the balance point is obtained at 40 cm. When Q is shunted by a resistance of 10, the balance point shifts to 50 cm. The values of P and Q are
physics-General
physics-
The current in branch AB is
The current in branch AB is
physics-General
physics-
In the given circuit, each resistance is 10. The equivalent resistance between A and D is
In the given circuit, each resistance is 10. The equivalent resistance between A and D is
physics-General
physics-
In the network shown,
In the network shown,
physics-General
physics-
In the circuit shown,
In the circuit shown,
physics-General
physics-
Find the equivalent resistance between P and Q
Find the equivalent resistance between P and Q
physics-General
physics-
What is the effective resistance between A and B
What is the effective resistance between A and B
physics-General
physics-
The resultant magnetic moment for the following arrangement is
The resultant magnetic moment for the following arrangement is
physics-General
physics-
A bar magnet of magnetic moment M is bent in ‘ υ ’ shape such that all the parts are of equal lengths. Then new magnetic moment is
A bar magnet of magnetic moment M is bent in ‘ υ ’ shape such that all the parts are of equal lengths. Then new magnetic moment is
physics-General
physics-
Five identical resistances are connected in a network as shown. The resistance measured between A and B is 1. Each resistance is
Five identical resistances are connected in a network as shown. The resistance measured between A and B is 1. Each resistance is
physics-General
physics-
The effective resistance of the network between points A and B
The effective resistance of the network between points A and B
physics-General
physics-
An elliptical cavity is carved within a perfect conductor. A positive charge q is placed at the centre of the cavity. The points A and B are on the cavity surface as shown in the figure. Then
An elliptical cavity is carved within a perfect conductor. A positive charge q is placed at the centre of the cavity. The points A and B are on the cavity surface as shown in the figure. Then
physics-General
physics-
A uniform rod of length l and mass m is charged with a charge q is hanging from one of its ends as shown in figure. At a horizontal electric field E is switched on in the horizontal direction perpendicular to the rod. Find the minimum value of E so that the rod rotates upto horizontal level.
A uniform rod of length l and mass m is charged with a charge q is hanging from one of its ends as shown in figure. At a horizontal electric field E is switched on in the horizontal direction perpendicular to the rod. Find the minimum value of E so that the rod rotates upto horizontal level.
physics-General
physics-
The resultant magnetic moment for the following arrangement (non coplanar vectors)
The resultant magnetic moment for the following arrangement (non coplanar vectors)
physics-General
physics-
Two thin different dielectrics are inserted between a parallel plate capacitor. Then electric field separation graph is
Two thin different dielectrics are inserted between a parallel plate capacitor. Then electric field separation graph is
physics-General