JEE Mains · Physics · STD 12 - 3. current electricity
A battery of \(6\,V\) is connected to the circuit as shown below. The current I drawn from the battery is:
- A \(1\,A\)
- B \(2\,A\)
- C \(\frac{6}{11}\,A\)
- D \(\frac{4}{3}\,A\)
Answer & Solution
Correct Answer
(A) \(1\,A\)
Step-by-step Solution
Detailed explanation
Balanced wheat stone bridge in circuit so there is no current in \(5\,\Omega\) resistor so it can be removed from the circuit. \(R _{eq }=\frac{6 \times 12}{6+12}+2\) \(=\frac{6 \times 12}{18}+2\) \(R _{e q }=6\,\Omega\) \(I =\frac{ V }{ R _{a q }}=\frac{6}{6}=1\,Amp\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- A ball is projected vertically upward with an initial velocity of \(50 \; ms ^{-1}\) at \(t =0 \; s\). At \(t =2 \,s\). another ball is projected vertically upward with same velocity. At \(t= \; \dots \; s\), second ball will meet the first ball \(\left( g =10 \; ms ^{-2}\right)\).JEE Mains 2022 Hard
- The pressure \(( P )\) and temperature \(( T )\) relationship of an ideal gas obeys the equation \(PT ^2=\) constant. The volume expansion coefficient of the gas will be:JEE Mains 2023 Hard
- A uniform disc with mass \(M=4\,kg\) and radius \(R=\) \(10\,cm\) is mounted on a fixed horizontal axle as shown in figure. A block with mass \(m =2\,kg\) hangs from a massless cord that is wrapped around the rim of the disc. During the fall of the block, the cord does not slip and there is no friction at the axle. The tension in the cord is_______ \(N\) \(\left(\right.\) Take \(\left.g =10\,ms ^{-2}\right)\)
JEE Mains 2022 Hard - The bob of a pendulum was released from a horizontal position. The length of the pendulum is \(10 \mathrm{~m}\). If it dissipates \(10 \%\) of its initial energy against air resistance, the speed with which the bob arrives at the lowest point is : _______. [Use, \(\mathrm{g}: 10 \mathrm{~ms}^{-2}\) ]JEE Mains 2024 Hard
- In a photoelectric experiment ultraviolet light of wavelength \(280\, {nm}\) is used with lithium cathode having work function \(\phi=2.5\, {eV}\). If the wavelength of incident light is switched to \(400\, {nm}\), find out the change in the stopping potential (in \({V}\)). \(\left({h}=6.63 \times 10^{-34}\, {J} \cdots\right.\), \(\left.{c}=3 \times 10^{8} \,{ms}^{-1}\right)\)JEE Mains 2021 Hard
- In a single slit experiment, a parallel beam of green light of wavelength \(550 \mathrm{~nm}\) passes through a slit of width \(0.20 \mathrm{~mm}\). The transmitted light is collected on a screen \(100 \mathrm{~cm}\) away. The distance of first order minima from the central maximum will be \(\mathrm{x} \times 10^{-5} \mathrm{~m}\). The value of \(\mathrm{x}\) is _______.JEE Mains 2024 Hard
More PYQs from JEE Mains
- For \(x\,\, \in \,R\,,x\, \ne \,0,\) let \({f_0}(x) = \frac{1}{{1 - x}}\) and \({f_{n + 1}}(x) = {f_0}({f_n}(x)),\) \(n\, = 0,1,2,....\) Then the value of \({f_{100}}(3) + {f_1}\left( {\frac{2}{3}} \right) + {f_2}\left( {\frac{3}{2}} \right)\) is equal toJEE Mains 2016 Hard
- The average translational kinetic energy of \({N}_{2}\) gas molecules at \(\ldots \ldots \ldots . .{ }^{\circ} {C}\) becomes equal to the \({K} . {E}\). of an electron accelerated from rest through a potential difference of \(0.1\) \(volt.\) \(\left(\right.\) Given \(\left.{k}_{{B}}=1.38 \times 10^{-23} \, {J} / {K}\right)\) (Fill the nearest integer).JEE Mains 2021 Medium
- If the distance between planes , \(4x - 2y-4z + 1 = 0\) and \(4x -2y-4z+ d = 0\) is \(7,\) then \(d\) isJEE Mains 2014 Medium
- Let \(f(x) = \lim_{y \to 0} \dfrac{(1 - \cos(xy)) \tan(xy)}{y^3}\). Then the number of solutions of the equation \(f(x) = \sin x\), \(x \in \mathbf{R}\) is :JEE Mains 2026 Medium
- Two moles of an ideal gas with \(\frac{\mathrm{C}_{\mathrm{P}}}{\mathrm{C}_{\mathrm{V}}}=\frac{5}{3}\) are mixed with \(3\) moles of another ideal gas with \(\frac{\mathrm{C}_{\mathrm{P}}}{\mathrm{C}_{\mathrm{V}}}=\frac{4}{3} .\) The value of \(\frac{\mathrm{C}_{\mathrm{P}}}{\mathrm{C}_{\mathrm{V}}}\) for the mixture isJEE Mains 2020 Hard
- If force \(\vec{F}=3 \hat{i}+4 \hat{j}-2 \hat{k}\) acts on a particle having position vector \(2 \hat{i}+\hat{j}+2 \hat{k}\) then, the torque about the origin will beJEE Mains 2022 Easy