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JEE Main 2023 (Online) 25th January Evening Shift
Numerical
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Two long parallel wires carrying currents 8A and 15A in opposite directions are placed at a distance of 7 cm from each other. A point P is at equidistant from both the wires such that the lines joining the point P to the wires are perpendicular to each other. The magnitude of magnetic field at P is _____________ $$\times~10^{-6}$$ T.

(Given : $$\sqrt2=1.4$$)

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2
JEE Main 2023 (Online) 25th January Evening Shift
Numerical
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A capacitor has capacitance 5$$\mu$$F when it's parallel plates are separated by air medium of thickness d. A slab of material of dielectric constant 1.5 having area equal to that of plates but thickness $$\frac{d}{2}$$ is inserted between the plates. Capacitance of the capacitor in the presence of slab will be __________ $$\mu$$F.

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3
JEE Main 2023 (Online) 25th January Evening Shift
Numerical
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An object is placed on the principal axis of convex lens of focal length 10cm as shown. A plane mirror is placed on the other side of lens at a distance of 20 cm. The image produced by the plane mirror is 5cm inside the mirror. The distance of the object from the lens is ___________ cm.

JEE Main 2023 (Online) 25th January Evening Shift Physics - Geometrical Optics Question 36 English

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4
JEE Main 2023 (Online) 25th January Evening Shift
Numerical
+4
-1
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Two cells are connected between points A and B as shown. Cell 1 has emf of 12 V and internal resistance of 3$$\Omega$$. Cell 2 has emf of 6V and internal resistance of 6$$\Omega$$. An external resistor R of 4$$\Omega$$ is connected across A and B. The current flowing through R will be ____________ A.

JEE Main 2023 (Online) 25th January Evening Shift Physics - Current Electricity Question 55 English

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