Physics-
General
Easy
Question
Equal current 
flows in two segments of a circular loop in the direction shown in figure. Radius of the loop is 
. The magnitude of magnitude field induction at the centre of the loop is
- zero
The correct answer is:
Magnetic field induction at 
due to current through 
It is acting perpendicular to the paper downwards.
Magnetic field induction at due to current through 
It is acting perpendicular to paper upwards.
Total magnetic field at due to current loop is
Related Questions to study
physics-
A wire carrying current is shaped as shown. Section 
is a quarter circle of radius . The magnetic field is directed
A wire carrying current is shaped as shown. Section is a quarter circle of radius . The magnetic field is directed
physics-General
physics-
Two wires 
carry currents as shown in figure. The magnetic interactions
Two wires carry currents as shown in figure. The magnetic interactions
physics-General
physics-
A uniform conducting wire 
has a mass of 
. A current of 
flows through it. The wire is kept in a uniform magnetic field 
. The acceleration of the wire will be
A uniform conducting wire has a mass of . A current of flows through it. The wire is kept in a uniform magnetic field . The acceleration of the wire will be
physics-General
physics-
Two long straight wires are set parallel to each other. Each carries a current in the opposite direction and the separation between them is 
The intensity of the magnetic field midway between them is
Two long straight wires are set parallel to each other. Each carries a current in the opposite direction and the separation between them is The intensity of the magnetic field midway between them is
physics-General
physics-
is a square loop made of uniform wire. If the current enters the loop at 
and leaves at 
, then the magnetic field will be
is a square loop made of uniform wire. If the current enters the loop at and leaves at , then the magnetic field will be
physics-General
physics-
Two wires with currents 2 A and 
A are enclosed in a circular loop. Another wire with current 3 A is situated outside the loop as shown. The 
around the loop is 
Two wires with currents 2 A and A are enclosed in a circular loop. Another wire with current 3 A is situated outside the loop as shown. The around the loop is
physics-General
physics-
Following figure shows the path of an electron that passes through two regions containing uniform magnetic fields of magnitudes 
and 
. It’s path in each region is a half circle, choose the correct option
Following figure shows the path of an electron that passes through two regions containing uniform magnetic fields of magnitudes and . It’s path in each region is a half circle, choose the correct option
physics-General
chemistry-
Number. Of atoms in"4.25 g of NH3 is:
Number. Of atoms in"4.25 g of NH3 is:
chemistry-General
chemistry-
contains 5.88% hydrogen, 
~ontains 11.11 % hydrogen while S02 contains 50% sulphur These figures jllustrate the law of:
contains 5.88% hydrogen, ~ontains 11.11 % hydrogen while S02 contains 50% sulphur These figures jllustrate the law of:
chemistry-General
chemistry-
Potassium combines with two isotopes of chlorine eSCI and 37CI respectively to form two samples of KCI Their formation follows the law of:
Potassium combines with two isotopes of chlorine eSCI and 37CI respectively to form two samples of KCI Their formation follows the law of:
chemistry-General
chemistry-
S02 gas was prepared by
i) burning Sulphur in oxygen,
ii) reacting sodium sulphite with dilute 
and
iii) heating copper with conc , It was found that in each case sulphur and oxygen combined in the ratio of 1 : 1The data illustrates the law of:
S02 gas was prepared by
i) burning Sulphur in oxygen,
ii) reacting sodium sulphite with dilute and
iii) heating copper with conc , It was found that in each case sulphur and oxygen combined in the ratio of 1 : 1The data illustrates the law of:
chemistry-General
Chemistry
Among the following the strongest nucleophile is
Among the following the strongest nucleophile is
ChemistryGeneral
chemistry-
Consider the Hofmann ammonolysis reaction
For any value of R, the correct order of basic character of the above amines in gaseous phase of nonpolar solvent is:
Consider the Hofmann ammonolysis reaction
For any value of R, the correct order of basic character of the above amines in gaseous phase of nonpolar solvent is:
chemistry-General
chemistry-
Consider the Hofmann ammonolysis reaction
If 
- (butyl), the correct order of basic char acter of the above amines in aqueous medium is:
Consider the Hofmann ammonolysis reaction
If - (butyl), the correct order of basic char acter of the above amines in aqueous medium is:
chemistry-General
chemistry-
Consider the Hofmann ammonolysis reaction
lf 
- (isopropyl), the correct order of basic character of the above amines in aqueous medium is
Consider the Hofmann ammonolysis reaction
lf - (isopropyl), the correct order of basic character of the above amines in aqueous medium is
chemistry-General
