Problems in Elementary PhysicsH. Holt, 1896 - 194 σελίδες |
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Σελίδα 118
... lamp . How far away from a point must the electric lamp be to produce the same illu- mination as the candle 12 cm . distant ? = 13. If one candle of an electric lamp in light - giving power , how many candles at 50 cm . will produce the ...
... lamp . How far away from a point must the electric lamp be to produce the same illu- mination as the candle 12 cm . distant ? = 13. If one candle of an electric lamp in light - giving power , how many candles at 50 cm . will produce the ...
Σελίδα 119
... lamp is placed at one end of a meter rod and the lamp to be tested at the other end . In a certain case the spot disappeared when the screen was 51 cm . from the standard . What was the candle - power of the lamp being tested ? 23. Two ...
... lamp is placed at one end of a meter rod and the lamp to be tested at the other end . In a certain case the spot disappeared when the screen was 51 cm . from the standard . What was the candle - power of the lamp being tested ? 23. Two ...
Σελίδα 148
... lamp takes a current of 1.4 amperes , and the difference of potential between its terminals is 70 volts . What is its resistance ? 7. The difference of potential between the terminals of a galvanometer when a 3 - ampere current flows is ...
... lamp takes a current of 1.4 amperes , and the difference of potential between its terminals is 70 volts . What is its resistance ? 7. The difference of potential between the terminals of a galvanometer when a 3 - ampere current flows is ...
Σελίδα 162
... lamp in Fig . 61 has a resistance of 140 ohms , what is the resistance between the mains when one lamp is burning ? What when two lamps are burning ? What in general is the effect on the current of turning on more lamps ( a ) on the ...
... lamp in Fig . 61 has a resistance of 140 ohms , what is the resistance between the mains when one lamp is burning ? What when two lamps are burning ? What in general is the effect on the current of turning on more lamps ( a ) on the ...
Σελίδα 180
... lamp . What energy is absorbed in the lamp ? 3. If a dynamo furnishes the energy consumed by 100 lights , each taking .5 ampere at 110 volts , what is the total power furnished by the machine ? 4. A dynamo receives 400 horse - power of ...
... lamp . What energy is absorbed in the lamp ? 3. If a dynamo furnishes the energy consumed by 100 lights , each taking .5 ampere at 110 volts , what is the total power furnished by the machine ? 4. A dynamo receives 400 horse - power of ...
Άλλες εκδόσεις - Προβολή όλων
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.