Science
If four identical resistors, of resistance 8 ohm, are first connected in series so as to give an effective resistance R<sub>s</sub>, and then connected in parallel so as to give an effective resistance R<sub>p</sub> then the ratio is 1. 32 2. 2 3. 0.5 4. 16
Related Questions
Select the INCORRECT match (between the plant and its vegetative part) from the following :
- Bryophyllum, leaf
- Potato, stem
- Money-plant, stem
- Rose, root
Select from the following the correct statement about tropic movement in plants:
- It is due to stimulus of touch and temperature.
- It does not depend upon the direction of stimulus received.
- It is observed only in roots and not in stems.
- It is a growth related movement.
In the following diagram, the position of the needle is shown on the scale of a voltmeter. The least count of the voltmeter and the reading shown by it respectively are :
- 0.15 V and 1.6 V
- 0.05 V and 1.6 V
- 0.15 V and 1.8 V
- 0.05 V and 1.8 V
In domestic electric circuits the wiring with 15 A current rating is for the electric devices which have
- higher power ratings such as geyser.
- lower power ratings such as fan.
- metallic bodies and low power ratings.
- non-metallic bodies and low power ratings.