Solution Library

How To Calculate Equivalent Resistance In A Circuit

Question What is the equivalent resistance in ohms o the circuit shown in the figure?     ... Read More

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How To Calculate Energy Delivered Time Period Of A Battery

Question A certain car battery with a 12 V emf has an initial charge of 180 A. hours. Assuming that the potential across the terminals stays constant until the battery is completely discharged, for how long (in hours) can it deliver energy at the rate of 120 W?   ... Read More

Reads ( 2011 )
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Calculate Magnetic Field Of Wire Wrapped Inside Cylinder

Question A thin wire of length 3.14 meters has a current o 6.00 Amperes running through it. If the entire length of the wire is wrapped evenly about a cylinder of radius 0.005 meters and length 0.1 meters, what is the magnetic field (in Tesla) inside the cylinder?     ... Read More

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Calculate The Magnitude Of Magnetic Force In A Wire

Question A wire loop carrying a current I is bent into the shape of a semicircle o radius R. A uniform magnetic field B is applied in the plane of the loop and perpendicular to the straight edge. Find the magnitude of the magnetic force in Tesla on the curved portion of the wire.   ... Read More

Reads ( 1905 )
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Value Of Auxiliary Resistance Required To Convert Galvanometer To Voltmeter

Question A galvanometer with resistance 50Ω measures a full-scale deflection when a current of 1 mA passes through the coil. What value of the auxiliary resistance is required to convert the galvanometer to a voltmeter that reads 1.5 V at full-scale deflection?   ... Read More

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How To Find Magnitude Of Force Per Unit Length In Wire

Question Three long wires have current flowing perpendicular to the page with directions indicated in the figure. Wire 2 is located at the origin, wire 3 is at x = 2 m on the x-axis, and wire 1 is at y = 2 m on the y-axis. I i1 = 1A, i2 = 2A, i3 = 3A, what is the magnitude of the force per unit len ... Read More

Reads ( 1978 )
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How To Find Magnetic Field At The Centre Of The Circular Arcs

Question A closed current path is made from two different circular arcs as shown in the figure. The larger arc has radius 3 cm and covers one quarter of the circle, and the smaller arc has radius 1 cm and overs the remaining three quarters of the circle. I the current is 1.5 A going counter clockwi ... Read More

Reads ( 1956 )
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What Happens When Plates Of Isolated Charged Capacitor Pulled Apart

Question What would happen if you are Pulling the plates of an isolated charged capacitor apart.   ... Read More

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How To Find Charge On Positive Plate Of Each Capacitor

Question A battery is used to charge a series combination of two identical capacitors. I the potential difference across the battery terminals is V and total charge Q lows through the battery during the charging process then the charge on the positive plate of each capacitor and the potential diffe ... Read More

Reads ( 1919 )
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How To Find Resistivity Of A Wire

Question A wire is 2.0 m long and 0.564 mm in radius. When connected to a potential difference of 2.0 V, a current o 4.0 A lows in the wire. The resistivity of the wire is:   ... Read More

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What Happens To The Brightness Or Power Of The Identical Light Bulbs When Switch Is Closed In Circuit

Question The light bulbs A and B in the circuit shown are identical. When the switch S is closed, what happens to the brightness or power of the light bulbs? ... Read More

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How To Find Brightness Of One Bulb With Brightness Of Another Bulb Given

Question The three light bulbs in the figure are identical. I the brightness or power of bulb B is P , what is the brightness or power of bulb A? ... Read More

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