MCQ
Two parallel wires carrying currents in the same direction attract each other because of:
- APotential difference between them.
- BMutual inductance between them.
- CElectric forces between them.
- ✓Magnetic forces between them.
✓
Answer
Correct option: D.
Magnetic forces between them.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A resistance $'R'$ draws power $'P'$ when connected to an $AC$ source. If an inductance is now placed in series with the resistance, such that the impedance of the circuit becomes $'Z',$ the power drawn will be
→If half life of an element is $69.3$ hours then how much of its percent will decay in $10^{\text {th }}$ to $11^{\text {th }}$ hours. Initial activity $=50\, \mu Ci$
→The relative luminosity of wavelength $600 \,nm$ is $0.6$. Find the radiant flux of $600 \,nm$ needed to produce the same brightness sensation as produced by $120 \,W$ of radiant flux at $555\, nm$.........$W$
→For a triode ${r_p} = 10$kilo ohm and ${g_m} = 3$$milli mho.$ If the load resistance is double of plate resistance, then the value of voltage gain will be
→A particle of charge $q$ and mass $m$ is moving along the $x$ -axis with a velocity $v$ and enters a region of electric field $E$ and magnetic field $B$ as shown in figure below for which figure the net force on the charge may be zero
→A $2 \mathrm{~A}$ current carrying straight metal wire of resistance $1 \Omega$, resistivity $2 \times 10^{-6} \Omega \mathrm{m}$, area of cross-section $10 \mathrm{~mm}^2$ and mass $500 \mathrm{~g}$ is suspended horizontally in mid air by applying a uniform magnetic field $\vec{B}$. The magnitude of $B$ is__________.$\times 10^{-1} \mathrm{~T}\left(\right.$ given, $\mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )
→Two refracting media are separated by a spherical interface as shown in the figure. $PP’$ is the principal axis, $\mu_1$ and $\mu_2$ are the refractive indices of medium of incidence and medium of refraction respectively. Then :
→The impurity atoms which are mixed with pure silicon to make a P-type semiconductor are those of
The voltage across a pure inductor is represented by the following diagram. Which of the following diagram will represent the current
In the circuit shown, the point ‘B’ is earthed. The potential at the point ‘A’ is
