Super capacitor: Super capacitor is a high capacity capacitor with a capacitance value much higher than normal capacitors but with lower voltage limits. Such capacitors bridges the gap between electrolytic capacitors and rechargeable batteries.
In automobile, bus, train, crane, elevator such capacitors are used for regenerative braking, short term energy storage or burst-mode power delivery.
Super capacitors have many advantages over batteries: they are very low weight and generally don't contain harmful chemicals or toxic metal. They can be charged and discharged innumerable number of times without ever wearing out.
The disadvantage is that super capacitors aren't well-suited for long-term energy storage. The discharge rate of super capacitors is significantly higher than lithium-ion batteries, they can lose as much 10-20% of their charge per day due to self-discharge.
Capacity of super capacitor is:

Options

A. very low
B. medium
C. very high
D. may have any value

Explanation

To solve the question regarding the capacity of a super capacitor, we can follow these steps:

### Step-by-step Solution:

1. **Understand the Definition**: The question describes a super capacitor as a high capacity capacitor with a capacitance value much higher than normal capacitors.

2. **Identify Key Characteristics**: The paragraph states that super capacitors bridge the gap between electrolytic capacitors and rechargeable batteries, indicating their significant energy storage capabilities.

3. **Analyze the Advantages**: The advantages mentioned include low weight, no harmful chemicals, and the ability to charge and discharge many times without wearing out. These features suggest a high capacity for energy storage.

4. **Consider the Disadvantages**: Although super capacitors have a high capacity, they are not suited for long-term energy storage due to a higher self-discharge rate compared to batteries. This does not negate their high capacity but highlights a limitation in usage.

5. **Conclude the Capacity**: Based on the information provided, it is clear that the capacity of a super capacitor is categorized as "very high."

6. **Check the Options**: The options provided are:
- Very Low
- Medium
- Very High
- May Have Any Value

Since we have established that the capacity of a super capacitor is very high, we can select this option.

### Final Answer:
The capacity of a super capacitor is **very high**.

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