Problems in Elementary PhysicsH. Holt, 1896 - 194 σελίδες |
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Σελίδα 147
... ampere and the E. M. F. one volt . Watts amperes × volts . 42. Ohm's Law states that the current varies directly as the E. M. F. and inversely as the resistance , or if C be amperes , E volts , and R ohms , then the following equation ...
... ampere and the E. M. F. one volt . Watts amperes × volts . 42. Ohm's Law states that the current varies directly as the E. M. F. and inversely as the resistance , or if C be amperes , E volts , and R ohms , then the following equation ...
Σελίδα 148
... ampere through a resistance of 1.3 ohms , what is its E. M. F. ? What current would it give if the external resistance were doubled ? 6. A glow - lamp takes a current of 1.4 amperes , and the difference of potential between its ...
... ampere through a resistance of 1.3 ohms , what is its E. M. F. ? What current would it give if the external resistance were doubled ? 6. A glow - lamp takes a current of 1.4 amperes , and the difference of potential between its ...
Σελίδα 151
... amperes through a wire whose resistance is 8 ohms . What is the internal resistance of each cell ? 26. Determine the current strength of 6 cells in parallel , each having an E. M. F. of 2 volts and an internal resist- ance of 3 ohms ...
... amperes through a wire whose resistance is 8 ohms . What is the internal resistance of each cell ? 26. Determine the current strength of 6 cells in parallel , each having an E. M. F. of 2 volts and an internal resist- ance of 3 ohms ...
Σελίδα 153
... amperes develops sufficient heat in flowing for 10 minutes through a coil of copper wire im- mersed in a vessel of water to raise the temperature of the water 5 ° , how many degrees will a 3 - ampere current raise the temperature in ...
... amperes develops sufficient heat in flowing for 10 minutes through a coil of copper wire im- mersed in a vessel of water to raise the temperature of the water 5 ° , how many degrees will a 3 - ampere current raise the temperature in ...
Σελίδα 161
... amperes is divided into two branches , whose resistances are as 3 to 5. How many amperes flow in each branch ? 2. Two points are connected by two wires in parallel , whose resistances are 7 ohms and 8 ohms respectively . What is the ...
... amperes is divided into two branches , whose resistances are as 3 to 5. How many amperes flow in each branch ? 2. Two points are connected by two wires in parallel , whose resistances are 7 ohms and 8 ohms respectively . What is the ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
amperes angle of incidence barometer block body Boyle's Law brass C₁ candle-power cell centimeter circuit Clark cell coefficient of friction coil concave mirror conjugate foci copper wire cubic current strength deflection density diagram to show diameter direction distance Draw a diagram dynes electric energy equal ergs Express the ratio Find focal length force formula given grams heat horizontal inches index of refraction internal resistance inversely iron lamp latent heat lens liquid magnetic pole mass measure mercury meter Ohm's Law ohms parallel pendulum plane poundal principal focus Prob problems produce Prof proportion represent resultant solid specific gravity square surface tangent galvanometer temperature thick tion total pressure tube units V₁ varies directly velocity of sound vessel vibration-number vibrations per second volts volume watts weight wheel width
Δημοφιλή αποσπάσματα
Σελίδα 1 - Measures of Length. 10 millimeters (mm.) 1 centimeter (cm.) 10 centimeters 1 decimeter (dm.) 10 decimeters 1 meter (m.) 10 meters 1 dekameter (Dm.) 10 dekameters 1 hectometer (Hm.) 10 hectometers 1 kilometer (Km.) 10 kilometers 1 myriameter (Mm.) 1181.
Σελίδα 2 - Measures of Weight 10 milligrams (mg) =1 centigram eg 10 centigrams =1 decigram dg 10 decigrams =1 gram g 10 grams =1 dekagram Dg 10 dekagrams =1 hektogram Hg 10 hektograms =1 kilogram Kg...
Σελίδα 161 - Remembering that the joint resistance of two (or more) circuits in parallel is the reciprocal of the sum of the reciprocals of the resistances of the several branches, we have: Fig.
Σελίδα 156 - ... and the projection of one on the other — is retrograde, or in the same direction as the motion of the hands of a watch.
Σελίδα 124 - A' MB' are similar, and A'B'^B'M AB BM' So in this case, as before, the size of the image is to the size of the object, as the distance of the image from the mirror is to the distance of the object from the mirror.