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An infinitely long straight conductor carries a current of $5 \text{ A}$. An electron is moving with a speed of $10^5 \text{ m/s}$ parallel to the conductor. The perpendicular distance between the electron and the conductor is $20 \text{ cm}$ at an instant. Calculate the magnitude of the force experienced by the electron at that instant.
A tightly wound 100 turns coil of radius 10 cm carries a current of 7 A. The magnitude of the magnetic field at the centre of the coil is: (Take permeability of free space as $4\pi \times 10^{-7}$ SI units)
Match the following columns and select the correct option: Column I: (A) Man, (B) Mango, (C) Tiger, (D) Wheat Column II: (i) Order–Carnivora, (ii) Family–Poaceae, (iii) Genus–Musca, (iv) Phylum–Chordata, (v) Family–Anacardiaceae
Match List-I with List-II: List-I (a) Scapula (b) Cranium (c) Sternum (d) Vertebral column List-II (i) Cartilaginous joints (ii) Flat bone (iii) Fibrous joints (iv) Triangular flat bone
Which of the following conditions causes erythroblastosis fetalis?
Match List-I with List-II List-I (Type of Joint) A. Cartilaginous Joint B. Ball and Socket Joint C. Fibrous Joint D. Saddle Joint List-II (Found between) I. Between flat skull bones II. Between adjacent vertebrae in vertebral column III. Between carpal and metacarpal of thumb IV. Between Humerus and Pectoral girdle
Match List-I with List-II: List-I (Location of Joint) A. Joint between humerus and pectoral girdle B. Knee joint C. Joint between atlas and axis D. Joint between carpals List-II (Type of Joint) I. Gliding joint II. Ball and socket joint III. Hinge Joint IV. Pivot joint
Name the blood cells, whose reduction in number can cause clotting disorder, leading to excessive loss of blood from the body:
The potential energy (y) curve for $H_{2}$ formation as a function of internuclear distance (x) of the $H$ atoms is shown below. The bond energy of $H_{2}$ is:
The QRS complex in a standard ECG represents:
Globulins contained in human blood plasma are primarily involved in:
A circuit contains an ammeter, a battery of $30\text{ V}$ and a resistance $40.8\,\Omega$ all connected in series. If the ammeter has a coil of resistance $480\,\Omega$ and a shunt of $20\,\Omega$ then reading in the ammeter will be :
A disc of radius $2\text{ m}$ and mass $100\text{ kg}$ rolls on a horizontal floor. Its centre of mass has speed of $20\text{ cm/s}$. How much work is needed to stop it?
If the radius of the ${}_{13}^{27}\mathrm{Al}$ nucleus is taken to be $R_{\mathrm{Al}}$, then the radius of ${}_{53}^{125}\mathrm{Te}$ nucleus is nearly:
Match the Column I and Column II: Column I (a) Scales (b) Comb plates (c) Radula (d) Choanocytes Column II (i) Ctenophora (ii) Mollusca (iii) Porifera (iv) Reptilia (v) Annelida
Which enzyme is responsible for the conversion of inactive fibrinogens to fibrins?
Which of the following is associated with a decrease in cardiac output?
Consider the junction diode as ideal. The value of current flowing through AB is:
Which of the following is produced when anisole reacts with HI?
A small mass attached to a string rotates on a frictionless table top as shown. If the tension on the string is increased by pulling the string causing the radius of the circular motion to decrease by a factor of $2$, the kinetic energy of the mass will: