Physics question and answers for December 26, 2023
- Q bulb is plugged into a 120 Volt outlet The resistance of the bulbs is 330 ohms a Calculate the current through the bulb b Calculate the watts and kw c...
- Q terminal potential difference is less than its emf 11 When a current of 2 A flows in a battery from its negative to positive terminal the potential difference across it...
- Q Two circular coils of radii r1 r2 and having torns N1 and N2 are connected in parallel across a voltage source The ratio of their magnetic moments is A r12r22...
- Q Paragraph for Question Nos 12 and 13 A circular ring of mass M and radius Rhaving linear charge density on upper half and on lower half is placed on rough...
- Q connected between two plates which are maintained at a constant potential difference V see figure The conductivity of the cylindrical conductor varies across its cross section as G Go where...
- Q 6 Two wires of equal length and equal diameter and having resistivities p and p2 are connected in series The equivalent resistivity of the combination is Guj CET 2015 a...
- Q 40 Thirteen resistors each resistance between A and B is 4R 2 2 R K www www R www ww R R www www R www B R www ww...
- Q Current is a measure of A force that moves a charge past a point B resistance to the movement of a charge past a point C energy used to move...
- Q Q3 Each phase of a balanced three phase connected load consists of a 200 mH inductor in series with the 200 2 resistance Assume zero line resistance and a phase...
- Q The potential difference across 8 ohm resistance is 48 volt as shown in the figure The value of potential difference across X and Y points will be x ww 302...
- Q DC ammeter has resistance 0 122 and its current ranges 0 100 A If the range is to be extended to 0 500 then the following shunt resistance will be...
- Q An RLC circuit consists of a 48 2 resistor a 200 F capacitor and an inductor The rms current is 2 5A when the circuit is connected to a 120...
- Q Q2 Write the mesh equations for each of the networks of Figure I and II below and using determinants solve for the loop currents in each network Use clockwise mesh...
- Q Please answer in two sig fig For the circuit shown in the figure all quantities are accurate to 2 significant figures What is the value of th current 12 V...
- Q In the circuit shown in figure if both the bulbs B and B are identical then C 600 F voor L 12 mH 500 B B daw 1 Both bulbs...
- Q 1 Two batteries of emf 1 and 2 2 1 point 1 and internal resistances R1 and R2 respectively are connected in parallel as shown in the figure Fig i...
- Q 10 The temperature dependence of resistivity p T of semiconductors insulators and metals is significantly based on the following factors this question has two correct answers 2 points The number...
- Q 8 According to Joule s law if potential 1 point difference across the conductor of a material of resistivity p remains constant then heat produced in the conductor is directly...
- Q 12 Kirchhoff s junction rule is a reflection of This question contains 2 corrects answers 2 poin Conservation of current density vector Conservation of charge The fact that momentum with...
- Q 13 A carbon resistor of 47 4 7 KQ is to be marked with rings of different colours for its identification The colour code sequence will be O Violet Yellow...
- Q In a potentiometer arrangement shown the length of potentiometer wire AB is 2 m with switch open the null point is 40 cm from end A and with switch closed...
- Q A potentiometer wire has length 4 m and resistance 8 The resistance that must be connected in series with the wire and an accumulator of e m f 2V so...
- Q 9 An electrical device creates a potential difference of 1500 V across two points at the surface of human skin Dry human skin has a resistance of about 125 000...
- Q 4 Draw a circuit diagram with a two cell battery and four bulbs connected in parallel Include a switch for controlling each load Include four diagrams showing each bulb illuminated...
- Q A 22 0 A current runs through a 12 gauge copper wire through a light bulb How many electrons pass through the light bulb each second O 15 0 x...
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